kbrain

CVE-2011-2778

HIGH · CVSS 7.6EPSS 3.8%EU EUVD

Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.

Key facts

CVSS score
7.6 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:H/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-119
EPSS score
3.8% (90th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2011-2752)
Published
December 23, 2011
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2752 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • tor / tor
  • tor / tor
  • tor / tor
  • tor / tor
  • tor / tor
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  • tor / tor
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  • tor / tor
  • tor / tor
  • tor / tor
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  • tor / tor
  • tor / tor
  • tor / tor
  • tor / tor

and 180 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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