CVE-2011-4897

Published: Dec 23, 2011Updated: Apr 29, 2026 Sources: CVE List NVDCWE-200

NVD MITRE

4.3CVSSMEDIUM

EPSS Score

Description

Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the local hostname as the Nickname value, which allows remote attackers to obtain potentially sensitive information by reading this value.

CVSS Vector Breakdown

Exploitability

AV:NAccess Vector

Network

AC:MAccess Complexity

Medium

Au:NAuthentication

None

Impact

C:PConfidentiality

Partial

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-200

Affected Products

n/a n/a

tor tor

Mixed

Security Products / secure-gateway-vpn

toross-projectSecurity Productsaka tor project

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique

Collection

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References

https://blog.torproject.org/blog/tor-02225-alpha-out

blog.torproject.org

Timeline

Published

Dec 23, 2011

Last Updated

Apr 29, 2026

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