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No exploitation reportedFix available

CVE-2025-26519

No exploitation reported by the sources we read.

  • Published2025-02-14
  • Fixed in1.2.6
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

musl libc 0.9.13 through 1.2.5 before 1.2.6 has an out-of-bounds write vulnerability when an attacker can trigger iconv conversion of untrusted EUC-KR text to UTF-8.

Timeline

dates in UTC
  1. 2025-02-1404:15CVE publishedNVD

Versions per branch

NVD
Musl-libc musl
BranchAffectedFixed in
1.2≥ 0.9.13, < 1.2.61.2.6

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • musl-libc muslother versions: not affected
    Affected
    • ≥ 0.9.13, < 1.2.6fixed in 1.2.6semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-02-14

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • muslUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • muslUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • muslUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • muslUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • muslUbuntu:26.10all versions · no fixed version listed
  • muslUbuntu:26.04:LTSall versions · no fixed version listed
  • muslUbuntu:25.10all versions · no fixed version listed
  • muslUbuntu:24.04:LTSall versions · no fixed version listed

27 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Musl-libc musl to 1.2.6

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2025-02-14
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-xpv5-92cc-8f65

Frequently asked questions

What is CVE-2025-26519?

musl libc 0.9.13 through 1.2.5 before 1.2.6 has an out-of-bounds write vulnerability when an attacker can trigger iconv conversion of untrusted EUC-KR text to UTF-8.

Is CVE-2025-26519 actively exploited?

Active exploitation of CVE-2025-26519 has not been confirmed. Its EPSS score was 0.3% on 2026-11-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-26519?

CVE-2025-26519 has a CVSS v3 base score of 7 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record