Buffer overflow in Musl-Libc Musl
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.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (26.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L.
Affected products
- Musl-libc Musl — versions 0.9.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch)
- cve@mitre.org (Mailing List, Third Party Advisory, Mitigation)
- cve@mitre.org (Patch)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Mitigation, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Mitigation, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Mitigation, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-26519?
- CVE-2025-26519 is a high-severity vulnerability in Musl-Libc Musl, classified under Out-of-bounds Write. CVSS score: 8.1/10. Published 2025-02-14.
- How severe is CVE-2025-26519?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2025-26519 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.