Vulnerability-Lookup

OESA-2025-2905 (CVE-2025-7700)

Vulnerability from osv_openeuler – Published: 2025-12-30 11:10 – Updated: 2026-08-06 11:10 – Source website

Summary

ffmpeg security update

Details

FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.

Security Fix(es):

A flaw was found in FFmpeg’s ALS audio decoder, where it does not properly check for memory allocation failures. This can cause the application to crash when processing certain malformed audio files. While it does not lead to data theft or system control, it can be used to disrupt services and cause a denial of service.(CVE-2025-7700)

Severity

5.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-7700	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "ffmpeg-6.1.1-24.oe2403sp1.aarch64.rpm",
          "ffmpeg-debuginfo-6.1.1-24.oe2403sp1.aarch64.rpm",
          "ffmpeg-debugsource-6.1.1-24.oe2403sp1.aarch64.rpm",
          "ffmpeg-devel-6.1.1-24.oe2403sp1.aarch64.rpm",
          "ffmpeg-libs-6.1.1-24.oe2403sp1.aarch64.rpm",
          "libavdevice-6.1.1-24.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "ffmpeg-6.1.1-24.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "ffmpeg-6.1.1-24.oe2403sp1.x86_64.rpm",
          "ffmpeg-debuginfo-6.1.1-24.oe2403sp1.x86_64.rpm",
          "ffmpeg-debugsource-6.1.1-24.oe2403sp1.x86_64.rpm",
          "ffmpeg-devel-6.1.1-24.oe2403sp1.x86_64.rpm",
          "ffmpeg-libs-6.1.1-24.oe2403sp1.x86_64.rpm",
          "libavdevice-6.1.1-24.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "ffmpeg",
        "purl": "pkg:rpm/openEuler/ffmpeg\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.1-24.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in FFmpeg\u2019s ALS audio decoder, where it does not properly check for memory allocation failures. This can cause the application to crash when processing certain malformed audio files. While it does not lead to data theft or system control, it can be used to disrupt services and cause a denial of service.(CVE-2025-7700)",
  "id": "OESA-2025-2905",
  "modified": "2026-08-06T11:10:02Z",
  "published": "2025-12-30T11:10:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2905"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7700"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ffmpeg security update",
  "upstream": [
    "CVE-2025-7700"
  ]
}

CVE-2025-7700 (GCVE-0-2025-7700)

Vulnerability from cvelistv5 – Published: 2025-11-07 18:59 – Updated: 2026-05-06 14:38

Title

Ffmpeg: null pointer dereference in ffmpeg als decoder (libavcodec/alsdec.c)

Summary

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-07 19:07 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

redhat redhat root

References

3 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2025-7700	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2380420	issue-trackingx_refsource_REDHAT
https://github.com/FFmpeg/FFmpeg/commit/35a6de137…

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 8.0 (semver)

Date Public

2025-07-15 00:00

Credits

Red Hat would like to thank Jiasheng Jiang for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-7700",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-07T19:07:55.825409Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/FFmpeg/FFmpeg/",
          "defaultStatus": "unaffected",
          "packageName": "ffmpeg",
          "versions": [
            {
              "lessThan": "8.0",
              "status": "affected",
              "version": "0",
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            }
          ]
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      ],
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          "value": "Red Hat would like to thank Jiasheng Jiang for reporting this issue."
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      ],
      "datePublic": "2025-07-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in FFmpeg\u2019s ALS audio decoder, where it does not properly check for memory allocation failures. This can cause the application to crash when processing certain malformed audio files. While it does not lead to data theft or system control, it can be used to disrupt services and cause a denial of service."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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            "version": "3.1"
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      "providerMetadata": {
        "dateUpdated": "2026-05-06T14:38:29.969Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
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      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2025-7700"
        },
        {
          "name": "RHBZ#2380420",
          "tags": [
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      "timeline": [
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          "value": "Reported to Red Hat."
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          "lang": "en",
          "time": "2025-07-15T00:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Ffmpeg: null pointer dereference in ffmpeg als decoder (libavcodec/alsdec.c)",
      "workarounds": [
        {
          "lang": "en",
          "value": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Users are strongly encouraged to apply vendor-supplied updates or patches as they become available to address this vulnerability."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-476: NULL Pointer Dereference"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2025-7700",
    "datePublished": "2025-11-07T18:59:28.962Z",
    "dateReserved": "2025-07-16T05:12:48.951Z",
    "dateUpdated": "2026-05-06T14:38:29.969Z",
    "state": "PUBLISHED"
  },
  "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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

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