CVE-2025-66293

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1	Patch
https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a	Patch
https://github.com/pnggroup/libpng/issues/764	Exploit Issue Tracking Patch
https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f	Exploit Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/12/03/6	Mailing List
http://www.openwall.com/lists/oss-security/2025/12/03/7	Mailing List
http://www.openwall.com/lists/oss-security/2025/12/03/8	Mailing List
https://github.com/pnggroup/libpng/issues/764	Exploit Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-12-03 21:15

Updated : 2025-12-16 19:12

NVD link : CVE-2025-66293

Mitre link : CVE-2025-66293

CVE.ORG link : CVE-2025-66293

JSON object : View

Products Affected

libpng

libpng

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2025-66293", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 2.8}]}, "published": "2025-12-03T21:15:53.060", "references": [{"url": "https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/pnggroup/libpng/issues/764", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "http://www.openwall.com/lists/oss-security/2025/12/03/6", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/12/03/7", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/12/03/8", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/pnggroup/libpng/issues/764", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later."}], "lastModified": "2025-12-16T19:12:50.350", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98FBE7B9-73DC-483B-87E8-5229792557C3", "versionEndExcluding": "1.6.52"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}