Is CVE-2011-1918 actively exploited?

No active exploitation of CVE-2011-1918 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2011-1918 be exploited remotely?

Yes. CVE-2011-1918 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2011-1918?

CVE-2011-1918 has a CVSS score of 10.0 (CRITICAL).

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CRITICAL

CVE-2011-1918

CWE-119Published: November 2, 2011· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

Stack-based buffer overflow in the Data Archiver service in GE Intelligent Platforms Proficy Historian before 3.5 SIM 17 and 4.x before 4.0 SIM 12 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via crafted TCP message traffic.

NVD Source

Technical Analysis

CVE-2011-1918 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-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.