# What is CVE-2018-2826? > CVE-2018-2826 is a high-severity flaw (CVSS 8.3) in JDK from Oracle, published on 19 April 2018. 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 4.9%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2018-2826 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 48 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 8.3 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:** 4.9% (latest exploit-likelihood forecast) - **Published:** 19 April 2018 - **Record last updated:** 6 May 2025 - **Main product:** JDK from Oracle - **Affected products:** 18 ## What is CVE-2018-2826? In plain terms It can be attacked from anywhere on the internet without logging in, but a person has to take an action first. If it works, the attacker can read data, change data and take it offline. ### The official description Vulnerability in the Java SE component of Oracle Java SE (subcomponent: Libraries). The supported version that is affected is Java SE: 10. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). ### What kind of flaw is it? - Unknown: Unknown ### 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: Yes, a person has to take an action - What an attacker gets: Can read data, change data and take it offline Severity vector: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H` ## Is CVE-2018-2826 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 4.9%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 4.9%, 4.9%, 4.9%, 4.9%, 4.9%, 4.9%, 4.9%. ### Timeline - 19 April 2018: Published - 6 May 2025: Record last updated ### How Precursor Intelligence ranks it CVE-2018-2826 scores **48 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-2018-2826? The published record lists 18 products. - [JDK](https://www.precursorintelligence.com/product/oracle/jdk) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 10 - [Oncommand Unified Manager](https://www.precursorintelligence.com/product/netapp/oncommand_unified_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 7.3 and later, 9.4 and later - [Cloud Backup](https://www.precursorintelligence.com/product/netapp/cloud_backup) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Clustered Data Ontap](https://www.precursorintelligence.com/product/netapp/clustered_data_ontap) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified - [E-Series Santricity Management](https://www.precursorintelligence.com/product/netapp/e-series_santricity_management) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [E-Series Santricity OS Controller](https://www.precursorintelligence.com/product/netapp/e-series_santricity_os_controller) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 11.0 to 11.40 - [E-Series Santricity Storage Manager](https://www.precursorintelligence.com/product/netapp/e-series_santricity_storage_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [E-Series Santricity Web Services](https://www.precursorintelligence.com/product/netapp/e-series_santricity_web_services) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [JRE](https://www.precursorintelligence.com/product/oracle/jre) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 10 - [Oncommand Insight](https://www.precursorintelligence.com/product/netapp/oncommand_insight) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Oncommand Workflow Automation](https://www.precursorintelligence.com/product/netapp/oncommand_workflow_automation) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Santricity Cloud Connector](https://www.precursorintelligence.com/product/netapp/santricity_cloud_connector) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Snapmanager](https://www.precursorintelligence.com/product/netapp/snapmanager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Storage Replication Adapter](https://www.precursorintelligence.com/product/netapp/storage_replication_adapter) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 7.2 and later - [Storagegrid](https://www.precursorintelligence.com/product/netapp/storagegrid) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified - [Ubuntu Linux](https://www.precursorintelligence.com/product/canonical/ubuntu_linux) by [Canonical](https://www.precursorintelligence.com/vendors/canonical) (Operating system): 18.04 - [Vasa Provider](https://www.precursorintelligence.com/product/netapp/vasa_provider) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 7.2 and later - [Virtual Storage Console](https://www.precursorintelligence.com/product/netapp/virtual_storage_console) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 7.2 and later ## How do I fix CVE-2018-2826? 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 advisory 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](http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html) (Patch, Vendor advisory) - [securityfocus.com](http://www.securityfocus.com/bid/103796) (Broken link, Third-party advisory, Vulnerability database) - [securitytracker.com](http://www.securitytracker.com/id/1040697) (Broken link, Third-party advisory, Vulnerability database) - [help.ecostruxureit.com](https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0) (Third-party advisory) - [security.netapp.com](https://security.netapp.com/advisory/ntap-20180419-0001/) (Third-party advisory) - [usn.ubuntu.com](https://usn.ubuntu.com/3747-1/) (Third-party advisory) ## Questions ### What is CVE-2018-2826? CVE-2018-2826 is a high-severity flaw in JDK from Oracle, published on 19 April 2018. It can be attacked from anywhere on the internet without logging in, but a person has to take an action first. If it works, the attacker can read data, change data and take it offline. ### How serious is CVE-2018-2826? It scores 8.3 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2018-2826 is 48 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2018-2826 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 4.9%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2018-2826 affect? For JDK from Oracle: 10. The record lists 18 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2018-2826? 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-2018-2826 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