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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (26.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Musl-Libc Musl — versions 0.9.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.musl-libc.org/cgit/musl/commit/ (Patch)
- www.openwall.com/lists/oss-security/2025/02/13/2 (Mailing List, Third Party Advisory, Mitigation)
- git.musl-libc.org/cgit/musl/commit/ (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.