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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.4 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://git.musl-libc.org/cgit/musl/commit/?id=c47ad25ea3b484e10326f933e927c0bc8cded3da	Patch
https://git.musl-libc.org/cgit/musl/commit/?id=e5adcd97b5196e29991b524237381a0202a60659	Patch
https://www.openwall.com/lists/oss-security/2025/02/13/2	Mailing List Mitigation Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/13/2	Mailing List Mitigation Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/13/3	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/13/4	Mailing List Mitigation Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/13/5	Mailing List Mitigation Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/14/5	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/14/6	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-02-14 04:15

Updated : 2025-12-10 20:03

NVD link : CVE-2025-26519

Mitre link : CVE-2025-26519

CVE.ORG link : CVE-2025-26519

JSON object : View

Products Affected

musl-libc

musl

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2025-26519", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.4}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2025-02-14T04:15:09.050", "references": [{"url": "https://git.musl-libc.org/cgit/musl/commit/?id=c47ad25ea3b484e10326f933e927c0bc8cded3da", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://git.musl-libc.org/cgit/musl/commit/?id=e5adcd97b5196e29991b524237381a0202a60659", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://www.openwall.com/lists/oss-security/2025/02/13/2", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.openwall.com/lists/oss-security/2025/02/13/2", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/02/13/3", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/02/13/4", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/02/13/5", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/02/14/5", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/02/14/6", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "musl libc 0.9.13 a 1.2.5 antes de 1.2.6 tiene una vulnerabilidad de escritura fuera de los l\u00edmites cuando un atacante puede activar la conversi\u00f3n iconv de texto EUC-KR no confiable a UTF-8."}], "lastModified": "2025-12-10T20:03:59.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "49F68D79-2A07-484F-97E2-CF71F976D151", "versionEndExcluding": "1.2.6", "versionStartIncluding": "0.9.13"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}