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CVE-2009-3527
Race condition in the Pipe (IPC) close function in FreeBSD 6.3 and 6.4 allows local users to cause a denial of service (crash) or gain…
Medium6.9EPSS 0.55%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Race condition in the Pipe (IPC) close function in FreeBSD 6.3 and 6.4 allows local users to cause a denial of service (crash) or gain privileges via vectors related to kqueues, which triggers a use after free, leading to a NULL pointer dereference or memory corruption.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.55% · top 54% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.
Weakness
Affected products
n/a
- affected n/a
References (5)
- 1022982 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FreeBSD-SA-09:13 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- 58544 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20090913 Re: [Full-disclosure] FreeBSD <= 6.1 kqueue() NULL pointer dereference (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 36375 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2009-3527)Record last updated .