PatchTheCVECVE-2009-2411: Multiple integer overflows in the libsvn_delta library in Subversion before 1.5.7, and 1.6.x before 1.6.4, all
CVE-2009-2411 is a high-severity flaw (CVSS 8.5) affecting subversion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Multiple integer overflows in the libsvn_delta library in Subversion before 1.5.7, and 1.6.x before 1.6.4, allow remote authenticated users and remote Subversion servers to execute arbitrary code via an svndiff stream with large windows that trigger a heap-based buffer overflow, a related issue to CVE-2009-2412.
Why this priority
- High severity
- EPSS top 8%: very likely to be exploited
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.5 (High) |
| EPSS exploit chance | 5.1% (top 8%) |
| CISA exploited list | No |
| Weakness | CWE-189 |
| Published | 2009-08-07 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2009-2411?
subversion: upgrade to newer than 1.5.6. Exact commands for each OS are on this page.
Is CVE-2009-2411 being exploited?
CVE-2009-2411 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2009-2411 affect?
CVE-2009-2411 affects subversion. Severity is high (CVSS 8.5). Multiple integer overflows in the libsvn_delta library in Subversion before 1.5.7, and 1.6.x before 1.6.4, allow remote authenticated users and remote Subversion servers to execute arbitrary code via an svndiff stream with large windows tha
How urgent is CVE-2009-2411?
Priority 53/100. High severity; EPSS top 8%: very likely to be exploited
Software pages
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