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CVE-2011-0427
Heap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service…
Medium6.8EPSS 4.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Heap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.
Timeline
ID reserved
By mitre
- 7 days later
· 7 days later
Published
- 14 years later
· 14 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 4.4% · top 8.5% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (11)
- [or-announce] 20110117 Tor 0.2.1.29 is released (security patches) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- ADV-2011-0131 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog (opens in a new tab)x_refsource_CONFIRMx_transferred
- 42907 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://blog.torproject.org/blog/tor-02129-released-security-patches (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1024980 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- tor-unspec-bo(64748) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- ADV-2011-0132 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- DSA-2148 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 42905 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 45832 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-0427)Record last updated .