Is CVE-2011-4897 actively exploited?

No active exploitation of CVE-2011-4897 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2011-4897 be exploited remotely?

Yes. CVE-2011-4897 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2011-4897?

CVE-2011-4897 has a CVSS score of 4.3 (MEDIUM).

HOME VULNERABILITIESCVE-2011-4897

MEDIUM

CVE-2011-4897

CWE-200Published: December 23, 2011· Updated: Jun 16, 2026

4.3

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2011-4897 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.