Vulnerability-Lookup

FKIE_CVE-2025-59733

Vulnerability from fkie_nvd - Published: 2025-10-06 08:15 - Updated: 2026-10-19 16:10

Severity

8.7 (High) - CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Summary

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that all image channels have the same pixel type (and size), and that if there are four channels, the first four are "B", "G", "R" and "A". The channel parsing code can be found in decode_header. The buffer td->uncompressed_data is allocated in decode_block based on the xsize, ysize and computed current_channel_offset. The function dwa_uncompress then assumes at [5] that if there are 4 channels, these are "B", "G", "R" and "A", and in the calculations at [6] and [7] that all channels are of the same type, which matches the type of the main color channels. If we set the main color channels to a 4-byte type and add duplicate or unknown channels of the 2-byte EXR_HALF type, then the addition at [7] will increment the pointer by 4-bytes * xsize * nb_channels, which will exceed the allocated buffer. We recommend upgrading to version 8.0 or beyond.

References

	URL	Tags
	cve-coordination@google.com	https://issuetracker.google.com/436511754

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://git.ffmpeg.org/ffmpeg.git",
          "defaultStatus": "unaffected",
          "packageName": "EXR",
          "product": "FFmpeg",
          "repo": "https://git.ffmpeg.org/ffmpeg.git",
          "vendor": "FFmpeg",
          "versions": [
            {
              "lessThan": "8.0",
              "status": "affected",
              "version": "9a32b863074ed4140141e0d3613905c6f1fe61c5",
              "versionType": "custom"
            },
            {
              "lessThan": "8.0",
              "status": "affected",
              "version": "7.1.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve-coordination@google.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When decoding an OpenEXR file that uses DWAA or DWAB compression, there\u0027s an implicit assumption that all image channels have the same pixel type (and size), and that if there are four channels, the first four are \"B\", \"G\", \"R\"\u00a0and \"A\". The channel parsing code can be found in decode_header.\u00a0The buffer td-\u003euncompressed_data\u00a0is allocated in decode_block\u00a0based on the xsize, ysize\u00a0and computed current_channel_offset.\n\nThe function dwa_uncompress\u00a0then assumes at [5] that if there are 4 channels, these are \"B\", \"G\", \"R\"\u00a0and \"A\", and in the calculations at [6] and [7] that all channels are of the same type, which matches the type of the main color channels.\n\nIf we set the main color channels to a 4-byte type and add duplicate or unknown channels of the 2-byte EXR_HALF\u00a0type, then the addition at [7] will increment the pointer by 4-bytes * xsize * nb_channels, which will exceed the allocated buffer.\n\n\n\n\n\nWe recommend upgrading to version 8.0 or beyond."
    },
    {
      "lang": "es",
      "value": "Al decodificar un archivo OpenEXR que utiliza compresi\u00f3n DWAA o DWAB, existe una suposici\u00f3n impl\u00edcita de que todos los canales de imagen tienen el mismo tipo de p\u00edxel (y tama\u00f1o), y de que si hay cuatro canales, los primeros cuatro son \u0027B\u0027, \u0027G\u0027, \u0027R\u0027 y \u0027A\u0027. El c\u00f3digo de an\u00e1lisis de canales se encuentra en decode_header. El b\u00fafer td -\u003e uncompressed_data se asigna en decode_block bas\u00e1ndose en xsize, ysize y el current_channel_offset calculado.\n\nLa funci\u00f3n dwa_uncompress entonces asume en [5] que si hay 4 canales, estos son \u0027B\u0027, \u0027G\u0027, \u0027R\u0027 y \u0027A\u0027, y en los c\u00e1lculos en [6] y [7] que todos los canales son del mismo tipo, lo que coincide con el tipo de los canales de color principales.\n\nSi configuramos los canales de color principales a un tipo de 4 bytes y a\u00f1adimos canales duplicados o desconocidos del tipo EXR_HALF de 2 bytes, entonces la suma en [7] incrementar\u00e1 el puntero en 4 bytes * xsize * nb_channels, lo que exceder\u00e1 el b\u00fafer asignado.\n\nRecomendamos actualizar a la versi\u00f3n 8.0 o posterior."
    }
  ],
  "id": "CVE-2025-59733",
  "lastModified": "2026-10-19T16:10:00.260",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "ADJACENT",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cve-coordination@google.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-59733",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-08T03:55:14.505751Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-10-06T08:15:35.080",
  "references": [
    {
      "source": "cve-coordination@google.com",
      "url": "https://issuetracker.google.com/436511754"
    }
  ],
  "sourceIdentifier": "cve-coordination@google.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "cve-coordination@google.com",
      "type": "Secondary"
    }
  ]
}

CVE-2025-59733 (GCVE-0-2025-59733)

Vulnerability from cvelistv5 – Published: 2025-10-06 08:09 – Updated: 2026-02-26 17:48

Title

Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress

Summary

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-08 03:55 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

Google CNA under the Google root

CNA scorecard B 77/100 over 39 records in the last 180 days details

References

1 reference

URL	Tags
https://issuetracker.google.com/436511754

Impacted products

1 product

Vendor	Product	Version
FFmpeg	FFmpeg	Affected: 9a32b863074ed4140141e0d3613905c6f1fe61c5 , < 8.0 (custom) Affected: 7.1.1 , < 8.0 (semver)

Date Public

2025-08-04 22:00

Credits

Google Big Sleep

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-59733",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-08T03:55:14.505751Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T17:48:17.036Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://git.ffmpeg.org/ffmpeg.git",
          "defaultStatus": "unaffected",
          "packageName": "EXR",
          "product": "FFmpeg",
          "repo": "https://git.ffmpeg.org/ffmpeg.git",
          "vendor": "FFmpeg",
          "versions": [
            {
              "lessThan": "8.0",
              "status": "affected",
              "version": "9a32b863074ed4140141e0d3613905c6f1fe61c5",
              "versionType": "custom"
            },
            {
              "lessThan": "8.0",
              "status": "affected",
              "version": "7.1.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Google Big Sleep"
        }
      ],
      "datePublic": "2025-08-04T22:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eWhen decoding an OpenEXR file that uses DWAA or DWAB compression, there\u0027s an implicit assumption that all image channels have the same pixel type (and size), and that if there are four channels, the first four are \u003c/span\u003e\u003ccode\u003e\"B\"\u003c/code\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e, \u003c/span\u003e\u003ccode\u003e\"G\"\u003c/code\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e, \u003c/span\u003e\u003ccode\u003e\"R\"\u003c/code\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;and \u003c/span\u003e\u003ccode\u003e\"A\"\u003c/code\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e. The channel parsing code can be found in \u003c/span\u003e\u003ccode\u003edecode_header.\u0026nbsp;\u003cp\u003eThe buffer \u003ccode\u003etd-\u0026gt;uncompressed_data\u003c/code\u003e\u0026nbsp;is allocated in \u003ccode\u003edecode_block\u003c/code\u003e\u0026nbsp;based on the \u003ccode\u003exsize\u003c/code\u003e, \u003ccode\u003eysize\u003c/code\u003e\u0026nbsp;and computed \u003ccode\u003ecurrent_channel_offset\u003c/code\u003e.\u003c/p\u003e\u003cp\u003eThe function \u003ccode\u003edwa_uncompress\u003c/code\u003e\u0026nbsp;then assumes at [5] that if there are 4 channels, these are \u003ccode\u003e\"B\"\u003c/code\u003e, \u003ccode\u003e\"G\"\u003c/code\u003e, \u003ccode\u003e\"R\"\u003c/code\u003e\u0026nbsp;and \u003ccode\u003e\"A\"\u003c/code\u003e, and in the calculations at [6] and [7] that all channels are of the same type, which matches the type of the main color channels.\u003c/p\u003e\u003cp\u003eIf we set the main color channels to a 4-byte type and add duplicate or unknown channels of the 2-byte \u003ccode\u003eEXR_HALF\u003c/code\u003e\u0026nbsp;type, then the addition at [7] will increment the pointer by \u003ccode\u003e4-bytes * xsize * nb_channels\u003c/code\u003e, which will exceed the allocated buffer.\u003c/p\u003e\u003c/code\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003eWe recommend upgrading to version 8.0 or beyond.\u003cp\u003e\u003c/p\u003e\u003cbr\u003e"
            }
          ],
          "value": "When decoding an OpenEXR file that uses DWAA or DWAB compression, there\u0027s an implicit assumption that all image channels have the same pixel type (and size), and that if there are four channels, the first four are \"B\", \"G\", \"R\"\u00a0and \"A\". The channel parsing code can be found in decode_header.\u00a0The buffer td-\u003euncompressed_data\u00a0is allocated in decode_block\u00a0based on the xsize, ysize\u00a0and computed current_channel_offset.\n\nThe function dwa_uncompress\u00a0then assumes at [5] that if there are 4 channels, these are \"B\", \"G\", \"R\"\u00a0and \"A\", and in the calculations at [6] and [7] that all channels are of the same type, which matches the type of the main color channels.\n\nIf we set the main color channels to a 4-byte type and add duplicate or unknown channels of the 2-byte EXR_HALF\u00a0type, then the addition at [7] will increment the pointer by 4-bytes * xsize * nb_channels, which will exceed the allocated buffer.\n\n\n\n\n\nWe recommend upgrading to version 8.0 or beyond."
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      "impacts": [
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          "capecId": "CAPEC-100",
          "descriptions": [
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      "metrics": [
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          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
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            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-19T14:52:14.577Z",
        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "url": "https://issuetracker.google.com/436511754"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress",
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    "datePublished": "2025-10-06T08:09:37.290Z",
    "dateReserved": "2025-09-19T08:11:37.550Z",
    "dateUpdated": "2026-02-26T17:48:17.036Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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