# What is CVE-2022-23305? > CVE-2022-23305 is a critical-severity flaw (CVSS 9.8) in Log4j from Apache, published on 18 January 2022. 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 67%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-23305 ## 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:** 62 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** Critical (CVSS 9.8 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:** 67% (latest exploit-likelihood forecast) - **Published:** 18 January 2022 - **Record last updated:** 24 February 2023 - **Main product:** Log4j from Apache - **Affected products:** 28 ## What is CVE-2022-23305? 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 data, change data and take it offline. ### The official description By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be inserted are converters from PatternLayout. The message converter, %m, is likely to always be included. This allows attackers to manipulate the SQL by entering crafted strings into input fields or headers of an application that are logged allowing unintended SQL queries to be executed. Note this issue only affects Log4j 1.x when specifically configured to use the JDBCAppender, which is not the default. Beginning in version 2.0-beta8, the JDBCAppender was re-introduced with proper support for parameterized SQL queries and further customization over the columns written to in logs. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions. ### What kind of flaw is it? - CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Easy: no special conditions - Login needed first: No login needed - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can read data, change data and take it offline Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2022-23305 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 67%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 67%, 67%, 67%, 67%, 67%, 67%, 67%. ### Timeline - 18 January 2022: Published - 24 February 2023: Record last updated - 19 November 2025: Exploit likelihood jumped - 22 November 2025: Exploit likelihood fell ### How Precursor Intelligence ranks it CVE-2022-23305 scores **62 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-2022-23305? The published record lists 28 products. Versions are as published: "before 12.0.0.4.4" means every version up to, but not including, 12.0.0.4.4. - [Log4j](https://www.precursorintelligence.com/product/apache/log4j) by [Apache](https://www.precursorintelligence.com/vendors/apache) (Application): 1.2 to 1.2.17 - [Business Intelligence](https://www.precursorintelligence.com/product/oracle/business_intelligence) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 5.9.0.0.0, 12.2.1.3.0, 12.2.1.4.0 - [Financial Services Revenue Management and Billing Analytics](https://www.precursorintelligence.com/product/oracle/financial_services_revenue_management_and_billing_analytics) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 2.7.0.0, 2.7.0.1, 2.8.0.0 - [Weblogic Server](https://www.precursorintelligence.com/product/oracle/weblogic_server) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0 - [Advanced Supply Chain Planning](https://www.precursorintelligence.com/product/oracle/advanced_supply_chain_planning) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.1, 12.2 - [Business Process Management Suite](https://www.precursorintelligence.com/product/oracle/business_process_management_suite) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.3.0, 12.2.1.4.0 - [Communications Offline Mediation Controller](https://www.precursorintelligence.com/product/oracle/communications_offline_mediation_controller) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 12.0.0.4.4, 12.0.0.5.0 - [Communications Unified Inventory Management](https://www.precursorintelligence.com/product/oracle/communications_unified_inventory_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 7.4.1, 7.4.2 - [E-Business Suite Cloud Manager and Cloud Backup Module](https://www.precursorintelligence.com/product/oracle/e-business_suite_cloud_manager_and_cloud_backup_module) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 2.2.1.1.1, 2.2.1.1.1 - [Enterprise Manager Base Platform](https://www.precursorintelligence.com/product/oracle/enterprise_manager_base_platform) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 13.4.0.0, 13.5.0.0 - [Identity Management Suite](https://www.precursorintelligence.com/product/oracle/identity_management_suite) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.3.0, 12.2.1.4.0 - [Brocade Sannav](https://www.precursorintelligence.com/product/broadcom/brocade_sannav) by [Broadcom](https://www.precursorintelligence.com/vendors/broadcom) (Application): version not specified - [Communications Eagle FTP Table Base Retrieval](https://www.precursorintelligence.com/product/oracle/communications_eagle_ftp_table_base_retrieval) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 4.5 - [Communications Instant Messaging Server](https://www.precursorintelligence.com/product/oracle/communications_instant_messaging_server) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 10.0.1.5.0 - [Communications Messaging Server](https://www.precursorintelligence.com/product/oracle/communications_messaging_server) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.1 - [Communications Network Integrity](https://www.precursorintelligence.com/product/oracle/communications_network_integrity) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 7.3.6 - [E-Business Suite Information Discovery](https://www.precursorintelligence.com/product/oracle/e-business_suite_information_discovery) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.3 to 12.2.11 - [Healthcare Foundation](https://www.precursorintelligence.com/product/oracle/healthcare_foundation) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.1.0 - [Hyperion Data Relationship Management](https://www.precursorintelligence.com/product/oracle/hyperion_data_relationship_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 11.2.8.0 - [Hyperion Infrastructure Technology](https://www.precursorintelligence.com/product/oracle/hyperion_infrastructure_technology) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 11.2.8.0 - [Identity Manager Connector](https://www.precursorintelligence.com/product/oracle/identity_manager_connector) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 11.1.1.5.0 - [Jdeveloper](https://www.precursorintelligence.com/product/oracle/jdeveloper) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.3.0 - [Middleware Common Libraries and Tools](https://www.precursorintelligence.com/product/oracle/middleware_common_libraries_and_tools) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.1.4.0 - [Mysql Enterprise Monitor](https://www.precursorintelligence.com/product/oracle/mysql_enterprise_monitor) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): up to 8.0.29 - [Reload4j](https://www.precursorintelligence.com/product/qos/reload4j) by [Qos](https://www.precursorintelligence.com/vendors/qos) (Application): before 1.2.18.2 - [Retail Extract Transform and Load](https://www.precursorintelligence.com/product/oracle/retail_extract_transform_and_load) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 13.2.5 - [Snapmanager](https://www.precursorintelligence.com/product/netapp/snapmanager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Tuxedo](https://www.precursorintelligence.com/product/oracle/tuxedo) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 12.2.2.0.0 ## How do I fix CVE-2022-23305? 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/cpujul2022.html) (Patch, Third-party advisory) - [lists.apache.org](https://lists.apache.org/thread/pt6lh3pbsvxqlwlp4c5l798dv2hkc85y) (Issue tracking, Mailing list, Vendor advisory) - [logging.apache.org](https://logging.apache.org/log4j/1.2/index.html) (Vendor advisory) - [openwall.com](http://www.openwall.com/lists/oss-security/2022/01/18/4) (Mailing list, Third-party advisory) - [security.netapp.com](https://security.netapp.com/advisory/ntap-20220217-0007/) (Third-party advisory) ## Questions ### What is CVE-2022-23305? CVE-2022-23305 is a critical-severity flaw in Log4j from Apache, published on 18 January 2022. 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 data, change data and take it offline. ### How serious is CVE-2022-23305? It scores 9.8 out of 10 on the CVSS severity scale, which is critical. Our risk score for CVE-2022-23305 is 62 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-2022-23305 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 67%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2022-23305 affect? For Log4j from Apache: 1.2 to 1.2.17. The record lists 28 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2022-23305? 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-2022-23305 affect you? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact