# What is CVE-2021-29425?

> CVE-2021-29425 is a medium-severity flaw (CVSS 4.8) in Commons Io from Apache, published on 13 April 2021. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 11%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2021-29425

## At a glance

- **Verdict:** Fix this soon. Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.
- **Precursor Intelligence risk score:** 40 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 4.8 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 11% (latest exploit-likelihood forecast)
- **Published:** 13 April 2021
- **Record last updated:** 7 November 2023
- **Main product:** Commons Io from Apache
- **Affected products:** 60

## What is CVE-2021-29425? In plain terms

It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read some data and change some data.

### The official description

In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "//../foo", or "\\..\foo", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus "limited" path traversal), if the calling code would use the result to construct a path value.

### What kind of flaw is it?

- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-20: Improper Input Validation

### How an attack on it works

- Where an attacker can be: Anywhere on the internet
- How hard it is to pull off: Hard: conditions must line up
- Login needed first: No login needed
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read some data and change some data

Severity vector: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N`

## Is CVE-2021-29425 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 11%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 11%, 11%, 11%, 11%, 11%, 11%, 11%.

### Timeline

- 13 April 2021: Published
- 7 November 2023: Record last updated
- 16 June 2026: Exploit likelihood jumped

### How Precursor Intelligence ranks it

CVE-2021-29425 scores **40 out of 100 (Medium)**, with the action "Plan remediation".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2021-29425?

The published record lists 60 products. Versions are as published: "before 21.2" means every version up to, but not including, 21.2.

- [Commons Io](https://www.precursorintelligence.com/product/apache/commons_io) by [Apache](https://www.precursorintelligence.com/vendors/apache) (Application): 2.2, 2.3, 2.4, 2.5, 2.6
- [Banking Apis](https://www.precursorintelligence.com/product/oracle/banking_apis) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 18.1, 18.2, 18.3, 19.1, 19.2, 20.1, 21.1
- [Banking Digital Experience](https://www.precursorintelligence.com/product/oracle/banking_digital_experience) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 17.2, 18.1, 18.3, 19.1, 19.2, 20.1, 21.1
- [Retail Integration Bus](https://www.precursorintelligence.com/product/oracle/retail_integration_bus) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 13.0, 14.1.3.0, 14.1.3.2, 15.0.3.1, 16.0.1 to 16.0.3, 19.0.0, 19.0.1
- [Retail Service Backbone](https://www.precursorintelligence.com/product/oracle/retail_service_backbone) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 14.1.3.0, 14.1.3.2, 15.0.3.1, 16.0.1 to 16.0.3, 19.0.0, 19.0.1
- [Banking Enterprise Default Management](https://www.precursorintelligence.com/product/oracle/banking_enterprise_default_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 2.6.2, 2.7.0, 2.7.1, 2.10.0, 2.12.0
- [Insurance Policy Administration](https://www.precursorintelligence.com/product/oracle/insurance_policy_administration) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 11.0.2, 11.1.0, 11.2.8, 11.3.0, 11.3.1
- [Insurance Rules Palette](https://www.precursorintelligence.com/product/oracle/insurance_rules_palette) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 11.0.2, 11.1.0, 11.2.8, 11.3.0, 11.3.1
- [Primavera Unifier](https://www.precursorintelligence.com/product/oracle/primavera_unifier) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 17.7 to 17.12, 18.8, 19.12, 20.12, 21.12
- [Banking Platform](https://www.precursorintelligence.com/product/oracle/banking_platform) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 2.3.0 to 2.4.1, 2.6.2, 2.7.0, 2.7.1
- [Retail Xstore Point of Service](https://www.precursorintelligence.com/product/oracle/retail_xstore_point_of_service) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 17.0.4, 18.0.3, 19.0.2, 20.0.1
- [Weblogic Server](https://www.precursorintelligence.com/product/oracle/weblogic_server) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0
- [Access Manager](https://www.precursorintelligence.com/product/oracle/access_manager) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 11.1.2.3.0, 12.2.1.3.0, 12.2.1.4.0
- [Flexcube Core Banking](https://www.precursorintelligence.com/product/oracle/flexcube_core_banking) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 5.2.0, 11.6.0 to 11.8.0, 11.10.0
- [Retail Order Broker](https://www.precursorintelligence.com/product/oracle/retail_order_broker) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 16.0, 18.0, 19.1
- [Utilities Testing Accelerator](https://www.precursorintelligence.com/product/oracle/utilities_testing_accelerator) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 6.0.0.1.1, 6.0.0.2.2, 6.0.0.3.1
- [Application Performance Management](https://www.precursorintelligence.com/product/oracle/application_performance_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 13.4.1.0, 13.5.1.0
- [Communications Billing and Revenue Management Elastic Charging Engine](https://www.precursorintelligence.com/product/oracle/communications_billing_and_revenue_management_elastic_charging_engine) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 11.3, 12.0
- [Communications Design Studio](https://www.precursorintelligence.com/product/oracle/communications_design_studio) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 7.3.5, 7.4.0 to 7.4.2
- [Communications Diameter Intelligence Hub](https://www.precursorintelligence.com/product/oracle/communications_diameter_intelligence_hub) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.0.0 to 8.1.0, 8.2.0 to 8.2.3
- [Communications Interactive Session Recorder](https://www.precursorintelligence.com/product/oracle/communications_interactive_session_recorder) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 6.3, 6.4
- [Communications Order and Service Management](https://www.precursorintelligence.com/product/oracle/communications_order_and_service_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 7.3, 7.4
- [Communications Pricing Design Center](https://www.precursorintelligence.com/product/oracle/communications_pricing_design_center) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.0.0.4.0, 12.0.0.5.0
- [Enterprise Session Border Controller](https://www.precursorintelligence.com/product/oracle/enterprise_session_border_controller) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.4, 9.0
- [Health Sciences Data Management Workbench](https://www.precursorintelligence.com/product/oracle/health_sciences_data_management_workbench) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 2.5.2.1, 3.0.0.0
- [Helidon](https://www.precursorintelligence.com/product/oracle/helidon) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.4.7, 2.2.0
- [Real User Experience Insight](https://www.precursorintelligence.com/product/oracle/real_user_experience_insight) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 13.4.1.0, 13.5.1.0
- [Rest Data Services](https://www.precursorintelligence.com/product/oracle/rest_data_services) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 21.2, 21.3
- [Retail Merchandising System](https://www.precursorintelligence.com/product/oracle/retail_merchandising_system) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 16.0.3, 19.0.1
- [Webcenter Portal](https://www.precursorintelligence.com/product/oracle/webcenter_portal) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.3.0, 12.2.1.4.0
- [Active Iq Unified Manager](https://www.precursorintelligence.com/product/netapp/active_iq_unified_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Agile Engineering Data Management](https://www.precursorintelligence.com/product/oracle/agile_engineering_data_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 6.2.1.0
- [Agile Plm](https://www.precursorintelligence.com/product/oracle/agile_plm) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 9.3.6
- [Application Testing Suite](https://www.precursorintelligence.com/product/oracle/application_testing_suite) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 13.3.0.1
- [Banking Enterprise Default Managment](https://www.precursorintelligence.com/product/oracle/banking_enterprise_default_managment) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 2.3.0 to 2.4.0
- [Banking Party Management](https://www.precursorintelligence.com/product/oracle/banking_party_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 2.7.0
- [Blockchain Platform](https://www.precursorintelligence.com/product/oracle/blockchain_platform) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 21.1.2
- [Commerce Guided Search](https://www.precursorintelligence.com/product/oracle/commerce_guided_search) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 11.3.2
- [Communications Application Session Controller](https://www.precursorintelligence.com/product/oracle/communications_application_session_controller) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 3.9.0
- [Communications Cloud Native Core Network Repository Function](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_network_repository_function) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.14.0
- [Communications Cloud Native Core Policy](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_policy) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.14.0
- [Communications Cloud Native Core Unified Data Repository](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_unified_data_repository) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.4.0
- [Communications Contacts Server](https://www.precursorintelligence.com/product/oracle/communications_contacts_server) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.0.0.6.0
- [Communications Converged Application Server - Service Controller](https://www.precursorintelligence.com/product/oracle/communications_converged_application_server_-_service_controller) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 6.2
- [Communications Convergence](https://www.precursorintelligence.com/product/oracle/communications_convergence) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 3.0.2.2.0
- [Communications Offline Mediation Controller](https://www.precursorintelligence.com/product/oracle/communications_offline_mediation_controller) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.0.0.3
- [Communications Policy Management](https://www.precursorintelligence.com/product/oracle/communications_policy_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.5.0.0.0
- [Communications Service Broker](https://www.precursorintelligence.com/product/oracle/communications_service_broker) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 6.2
- [Debian Linux](https://www.precursorintelligence.com/product/debian/debian_linux) by [Debian](https://www.precursorintelligence.com/vendors/debian) (Operating system): 9.0
- [Enterprise Communications Broker](https://www.precursorintelligence.com/product/oracle/enterprise_communications_broker) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 3.3
- [Financial Services Analytical Applications Infrastructure](https://www.precursorintelligence.com/product/oracle/financial_services_analytical_applications_infrastructure) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.0.7 to 8.1.1
- [Financial Services Model Management and Governance](https://www.precursorintelligence.com/product/oracle/financial_services_model_management_and_governance) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.0.8 to 8.1.1
- [Fusion Middleware Mapviewer](https://www.precursorintelligence.com/product/oracle/fusion_middleware_mapviewer) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.4.0
- [Health Sciences Information Manager](https://www.precursorintelligence.com/product/oracle/health_sciences_information_manager) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 3.0.1 to 3.0.4
- [Healthcare Data Repository](https://www.precursorintelligence.com/product/oracle/healthcare_data_repository) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.1.0
- [Oss Support Tools](https://www.precursorintelligence.com/product/oracle/oss_support_tools) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 2.12.42
- [Retail Assortment Planning](https://www.precursorintelligence.com/product/oracle/retail_assortment_planning) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 16.0.3
- [Retail Pricing](https://www.precursorintelligence.com/product/oracle/retail_pricing) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 19.0.1
- [Retail Size Profile Optimization](https://www.precursorintelligence.com/product/oracle/retail_size_profile_optimization) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 16.0.3
- [Solaris Cluster](https://www.precursorintelligence.com/product/oracle/solaris_cluster) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 4.0

## How do I fix CVE-2021-29425?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisories and patch notes first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [oracle.com](https://www.oracle.com/security-alerts/cpuapr2022.html) (Patch, Third-party advisory)
- [oracle.com](https://www.oracle.com/security-alerts/cpujan2022.html) (Patch, Third-party advisory)
- [oracle.com](https://www.oracle.com/security-alerts/cpujul2022.html) (Patch, Third-party advisory)
- [issues.apache.org](https://issues.apache.org/jira/browse/IO-556) (Exploit, Issue tracking, Vendor advisory)
- [lists.apache.org](https://lists.apache.org/thread.html/rc359823b5500e9a9a2572678ddb8e01d3505a7ffcadfa8d13b8780ab%40%3Cuser.commons.apache.org%3E) (Mailing list, Vendor advisory)
- [lists.apache.org](https://lists.apache.org/thread.html/r01b4a1fcdf3311c936ce33d75a9398b6c255f00c1a2f312ac21effe1%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r0bfa8f7921abdfae788b1f076a12f73a92c93cc0a6e1083bce0027c5%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r0d73e2071d1f1afe1a15da14c5b6feb2cf17e3871168d5a3c8451436%40%3Ccommits.pulsar.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r1c2f4683c35696cf6f863e3c107e37ec41305b1930dd40c17260de71%40%3Ccommits.pulsar.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r20416f39ca7f7344e7d76fe4d7063bb1d91ad106926626e7e83fb346%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r2345b49dbffa8a5c3c589c082fe39228a2c1d14f11b96c523da701db%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r27b1eedda37468256c4bb768fde1e8b79b37ec975cbbfd0d65a7ac34%40%3Cdev.myfaces.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r2bc986a070457daca457a54fe71ee09d2584c24dc262336ca32b6a19%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r2df50af2641d38f432ef025cd2ba5858215cc0cf3fc10396a674ad2e%40%3Cpluto-scm.portals.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r345330b7858304938b7b8029d02537a116d75265a598c98fa333504a%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r4050f9f6b42ebfa47a98cbdee4aabed4bb5fb8093db7dbb88faceba2%40%3Ccommits.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r462db908acc1e37c455e11b1a25992b81efd18e641e7e0ceb1b6e046%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r477c285126ada5c3b47946bb702cb222ac4e7fd3100c8549bdd6d3b2%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r47ab6f68cbba8e730f42c4ea752f3a44eb95fb09064070f2476bb401%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r5149f78be265be69d34eacb4e4b0fc7c9c697bcdfa91a1c1658d717b%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r523a6ffad58f71c4f3761e3cee72df878e48cdc89ebdce933be1475c%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r808be7d93b17a7055c1981a8453ae5f0d0fce5855407793c5d0ffffa%40%3Cuser.commons.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r8569a41d565ca880a4dee0e645dad1cd17ab4a92e68055ad9ebb7375%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r86528f4b7d222aed7891e7ac03d69a0db2a2dfa17b86ac3470d7f374%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r873d5ddafc0a68fd999725e559776dc4971d1ab39c0f5cc81bd9bc04%40%3Ccommits.pulsar.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r8bfc7235e6b39d90e6f446325a5a44c3e9e50da18860fdabcee23e29%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r8efcbabde973ea72f5e0933adc48ef1425db5cde850bf641b3993f31%40%3Cdev.commons.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r92ea904f4bae190b03bd42a4355ce3c2fbe8f36ab673e03f6ca3f9fa%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/ra8ef65aedc086d2d3d21492b4c08ae0eb8a3a42cc52e29ba1bc009d8%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/raa053846cae9d497606027816ae87b4e002b2e0eb66cb0dee710e1f5%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rad4ae544747df32ccd58fff5a86cd556640396aeb161aa71dd3d192a%40%3Cuser.commons.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rbebd3e19651baa7a4a5503a9901c95989df9d40602c8e35cb05d3eb5%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rc10fa20ef4d13cbf6ebe0b06b5edb95466a1424a9b7673074ed03260%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rc2dd3204260e9227a67253ef68b6f1599446005bfa0e1ddce4573a80%40%3Cpluto-dev.portals.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rc5f3df5316c5237b78a3dff5ab95b311ad08e61d418cd992ca7e34ae%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rc65f9bc679feffe4589ea0981ee98bc0af9139470f077a91580eeee0%40%3Cpluto-dev.portals.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rca71a10ca533eb9bfac2d590533f02e6fb9064d3b6aa3ec90fdc4f51%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rd09d4ab3e32e4b3a480e2ff6ff118712981ca82e817f28f2a85652a6%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/re41e9967bee064e7369411c28f0f5b2ad28b8334907c9c6208017279%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/red3aea910403d8620c73e1c7b9c9b145798d0469eb3298a7be7891af%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rfa2f08b7c0caf80ca9f4a18bd875918fdd4e894e2ea47942a4589b9c%40%3Cdev.creadur.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rfcd2c649c205f12b72dde044f905903460669a220a2eb7e12652d19d%40%3Cdev.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rfd01af05babc95b8949e6d8ea78d9834699e1b06981040dde419a330%40%3Cdev.commons.apache.org%3E)
- [lists.debian.org](https://lists.debian.org/debian-lts-announce/2021/08/msg00016.html) (Mailing list, Third-party advisory)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20220210-0004/) (Third-party advisory)
- [oracle.com](https://www.oracle.com/security-alerts/cpuoct2021.html) (Third-party advisory)

## Questions

### What is CVE-2021-29425?

CVE-2021-29425 is a medium-severity flaw in Commons Io from Apache, published on 13 April 2021. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read some data and change some data.

### How serious is CVE-2021-29425?

It scores 4.8 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2021-29425 is 40 out of 100, which is Medium. Its action is "Plan remediation". Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.

### Is CVE-2021-29425 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 11%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2021-29425 affect?

For Commons Io from Apache: 2.2, 2.3, 2.4, 2.5, 2.6. The record lists 60 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2021-29425?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2021-29425 affect you?

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