CVE-2025-66293 (GCVE-0-2025-66293)

Vulnerability from cvelistv5 – Published: 2025-12-03 20:33 – Updated: 2025-12-04 01:31
VLAI
Title
LIBPNG has an out-of-bounds read in png_image_read_composite
Summary
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.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
pnggroup libpng Affected: < 1.6.52
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-66293",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-03T20:52:13.771582Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-03T20:55:03.573Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/pnggroup/libpng/issues/764"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-12-04T01:31:47.574Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/12/03/6"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/12/03/7"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/12/03/8"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libpng",
          "vendor": "pnggroup",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.6.52"
            }
          ]
        }
      ],
      "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\u0027s 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\u0027s internal state management. Upgrade to libpng 1.6.52 or later."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-03T20:33:57.086Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f"
        },
        {
          "name": "https://github.com/pnggroup/libpng/issues/764",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pnggroup/libpng/issues/764"
        },
        {
          "name": "https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1"
        },
        {
          "name": "https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a"
        }
      ],
      "source": {
        "advisory": "GHSA-9mpm-9pxh-mg4f",
        "discovery": "UNKNOWN"
      },
      "title": "LIBPNG has an out-of-bounds read in png_image_read_composite"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-66293",
    "datePublished": "2025-12-03T20:33:57.086Z",
    "dateReserved": "2025-11-26T23:11:46.392Z",
    "dateUpdated": "2025-12-04T01:31:47.574Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-66293",
      "date": "2026-06-07",
      "epss": "0.00137",
      "percentile": "0.33438"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-66293\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-12-03T21:15:53.060\",\"lastModified\":\"2025-12-16T19:12:50.350\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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\u0027s 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\u0027s internal state management. Upgrade to libpng 1.6.52 or later.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.6.52\",\"matchCriteriaId\":\"98FBE7B9-73DC-483B-87E8-5229792557C3\"}]}]}],\"references\":[{\"url\":\"https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/pnggroup/libpng/issues/764\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/12/03/6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/12/03/7\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/12/03/8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://github.com/pnggroup/libpng/issues/764\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2025/12/03/6\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-12-03T23:03:19.452Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-66293\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-12-03T20:52:13.771582Z\"}}}], \"references\": [{\"url\": \"https://github.com/pnggroup/libpng/issues/764\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-12-03T20:52:17.191Z\"}}], \"cna\": {\"title\": \"LIBPNG has an out-of-bounds read in png_image_read_composite\", \"source\": {\"advisory\": \"GHSA-9mpm-9pxh-mg4f\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"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\"}}], \"affected\": [{\"vendor\": \"pnggroup\", \"product\": \"libpng\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.6.52\"}]}], \"references\": [{\"url\": \"https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f\", \"name\": \"https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/pnggroup/libpng/issues/764\", \"name\": \"https://github.com/pnggroup/libpng/issues/764\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1\", \"name\": \"https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a\", \"name\": \"https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a\", \"tags\": [\"x_refsource_MISC\"]}], \"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\u0027s 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\u0027s internal state management. Upgrade to libpng 1.6.52 or later.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-12-03T20:33:57.086Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-66293\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-03T23:03:19.452Z\", \"dateReserved\": \"2025-11-26T23:11:46.392Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-12-03T20:33:57.086Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.