Is CVE-2011-5127 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2011-5127, but active exploitation has not been confirmed.

Can CVE-2011-5127 be exploited remotely?

Yes. CVE-2011-5127 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2011-5127?

CVE-2011-5127 has a CVSS score of 10.0 (CRITICAL).

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CRITICALPOC

CVE-2011-5127

CWE-22Published: August 26, 2012· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

Directory traversal vulnerability in Blue Coat Reporter 9.x before 9.2.4.13, 9.2.5.x before 9.2.5.1, and 9.3 before 9.3.1.2 on Windows allows remote attackers to read arbitrary files, and consequently execute arbitrary code, via an unspecified HTTP request.

NVD Source

Technical Analysis

CVE-2011-5127 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.

A proof-of-concept (PoC) exploit exists for CVE-2011-5127. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.