Is CVE-2026-34556 actively exploited?

No active exploitation of CVE-2026-34556 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34556 be exploited remotely?

No. CVE-2026-34556 requires local access to exploit.

What is the CVSS score of CVE-2026-34556?

CVE-2026-34556 has a CVSS score of 6.2 (MEDIUM).

HOME VULNERABILITIESCVE-2026-34556

MEDIUM

CVE-2026-34556

CWE-125Published: March 31, 2026· Updated: Apr 1, 2026

6.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.6th

Official Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, there is a heap-buffer-overflow (HBO) in icAnsiToUtf8() in the XML conversion path. The issue is triggered by a crafted ICC profile which causes icAnsiToUtf8(std::string&, char const*) to treat an input buffer as a C-string and call operations that rely on strlen()/null-termination. AddressSanitizer reports an out-of-bounds READ of size 115 past a 114-byte heap allocation, with the failure observed while running the iccToXml tool. This issue has been patched in version 2.3.1.6.

NVD Source

Technical Analysis

CVE-2026-34556 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.2.