Home/CVE/A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/icon
CVE

CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/icon

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.

LOW · CVSS 3.3 EPSS 7e-05
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-404Improper Resource Shutdown or Release
CWE-407Inefficient Algorithmic Complexity
▣

Scoring & Timeline

3.3
LOW · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Apr 2026 · 09:16 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/submit/796352
https://vuldb.com/vuln/356620
https://vuldb.com/vuln/356620/cti
https://www.openwall.com/lists/oss-security/2026/04/02/10
https://www.openwall.com/lists/oss-security/2026/04/03/2
http://www.openwall.com/lists/oss-security/2026/04/09/19
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