Is CVE-2012-4991 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2012-4991, but active exploitation has not been confirmed.

Can CVE-2012-4991 be exploited remotely?

Yes. CVE-2012-4991 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-4991?

CVE-2012-4991 has a CVSS score of 8.5 (HIGH).

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HIGHPOC

CVE-2012-4991

CWE-22Published: December 13, 2012· Updated: Jun 16, 2026

8.5

CVSS v3.1

Official Description

Multiple directory traversal vulnerabilities in Axway SecureTransport 5.1 SP2 and earlier allow remote authenticated users to (1) read, (2) delete, or (3) create files, or (4) list directories, via a ..%5C (encoded dot dot backslash) in a URI.

NVD Source

Technical Analysis

CVE-2012-4991 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-2012-4991. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.