CVE-2013-2465
CVE-2013-2465 is a security flaw in Oracle Java SE, which runs apps on computers and servers. Attackers are using a flaw in Oracle Java SE that its maker hasn't described in detail. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 28 Mar 2022, and says ransomware gangs have used it.[1]
Oracle Java SE is in things households have, such as phones, computers, browsers and everyday apps, so the fix matters at home as much as at work.
Description
CISA calls it an unspecified in Oracle Java SE. In its words: “Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE allows remote attackers to affect confidentiality, integrity, and availability via Unknown vectors related to 2D”[1]
The CVE record adds: “Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to 2D. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue allows remote attackers to bypass the Java sandbox via vectors related to "Incorrect image channel verification" in 2D.”[2]
The underlying weakness is protection mechanism failure (CWE-693), in MITRE’s list of common software weaknesses.
It scores 9.8 out of 10 on the Common Vulnerability Scoring System, which rates it critical, scored by the organisation that published the CVE using CVSS 3.1.[2]
Affected versions
NVD’s record doesn’t list version ranges for it. CISA names the product as Oracle Java SE.
Every device with Oracle Java SE needs the update.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 28 Mar 2022, 3,205 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 18 Apr 2022 to fix it.[1] CISA says ransomware gangs have used it.
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 99%. That’s in the top 1% of the flaws it scores.[3]
CISA assesses it as automatable: attackers can run it against many targets at once.
CISA doesn’t say who was attacked, or how.
Fix
CISA’s required action: “Apply updates per vendor instructions.”[1]
- Update Oracle Java SE now.Install the latest update from Oracle on every device that has it, and restart when asked. Then turn on automatic updates, so the next fix arrives on its own.
- If there’s no update, stop using it.CISA’s advice when a flaw being used in attacks has no fix is to stop using the product until it does.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 9.8.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks, noting that ransomware gangs have used it.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 99%.[3] |
See also
Other Oracle Java SE flaws
- CVE-2012-5076: sandbox bypass ·
- CVE-2015-4902: integrity check ·
- CVE-2015-2590: and java SE embedded remote code execution ·
- CVE-2012-4681: runtime environment (JRE) arbitrary code execution ·
- CVE-2012-1723: runtime environment (JRE) arbitrary code execution ·
- CVE-2012-0507: runtime environment (JRE) arbitrary code execution ·
Other Oracle flaws
- CVE-2026-21962, Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in: improper access control ·
- CVE-2026-46817, Oracle E-Business Suite: improper privilege management ·
- CVE-2026-35273, Oracle PeopleSoft Enterprise PeopleTools: missing authentication for critical function ·
- CVE-2024-21182, Oracle WebLogic Server: unspecified ·
- CVE-2025-61757, Oracle Fusion Middleware: missing authentication for critical function ·
Other protection mechanism failure flaws
- CVE-2026-58704, Google Pixel: improper authorization ·
- CVE-2026-32202, Microsoft Windows: protection mechanism failure ·
- CVE-2025-40536, SolarWinds Web Help Desk: security control bypass ·
- CVE-2026-21513, Microsoft Windows: MSHTML framework protection mechanism failure ·
- CVE-2026-21510, Microsoft Windows: shell protection mechanism failure ·
Added the same day
- CVE-2022-1096, Chrome and other Chromium browsers: type confusion ·
- CVE-2022-0543, Redis Debian-specific Redis Servers: debian-specific redis server lua sandbox escape ·
- CVE-2021-38646, Microsoft Office: access connectivity engine remote code execution ·
- CVE-2021-34486, Microsoft Windows: event tracing privilege escalation ·
- CVE-2021-26085, Atlassian Confluence Server: pre-authorization arbitrary file read ·
Every Oracle flaw on CISA’s list · Everything added in March 2022
References
- ^ Cybersecurity and Infrastructure Security Agency. “Oracle Java SE Unspecified Vulnerability”. Known Exploited Vulnerabilities Catalog, added 28 Mar 2022.
- ^ National Institute of Standards and Technology. “CVE-2013-2465 Detail”. National Vulnerability Database, published 18 Jun 2013.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.988, percentile 99.9, 31 Oct 2026.
- CVE Program. “CVE-2013-2465”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.