Is CVE-2026-6042 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-6042, but active exploitation has not been confirmed.

Can CVE-2026-6042 be exploited remotely?

No. CVE-2026-6042 requires local access to exploit.

What is the CVSS score of CVE-2026-6042?

CVE-2026-6042 has a CVSS score of 3.3 (LOW).

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LOWPOC

CVE-2026-6042

CWE-404Published: April 10, 2026· Updated: Apr 13, 2026

3.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.

NVD Source

Technical Analysis

CVE-2026-6042 requires local access, meaning attackers must already have a foothold on the target system.

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

A proof-of-concept (PoC) exploit exists for CVE-2026-6042. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.