FFmpeg up to 8.1.2 Vf Swaprect Video Filter filter_frame out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k4.06

Summaryinfo

A vulnerability was found in FFmpeg up to 8.1.2. It has been classified as critical. This issue affects the function filter_frame of the component Vf Swaprect Video Filter. The manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2026-65706. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in FFmpeg up to 8.1.2 and classified as critical. This issue affects the function filter_frame of the component Vf Swaprect Video Filter. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

FFmpeg versions 3.0 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_swaprect video filter that allows attackers to corrupt heap memory by supplying a crafted NV12 video frame with odd width dimensions. The filter_frame() function reuses a temporary row buffer sized for plane 0's single-byte pixel step across all planes, causing an 18-byte memcpy into a 17-byte heap allocation when processing the two-byte-per-sample interleaved chroma plane of a 17x16 NV12 frame, resulting in heap corruption and process crash with potential for code execution.

The advisory is shared at code.ffmpeg.org. The identification of this vulnerability is CVE-2026-65706 since 07/22/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

Applying the patch a7e38b617b32f996beaa371bbf04b39907d7a527 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: a7e38b617b32f996beaa371bbf04b39907d7a527

Timelineinfo

07/22/2026 CVE reserved
07/23/2026 +1 days Advisory disclosed
07/23/2026 +0 days VulDB entry created
07/23/2026 +0 days VulDB entry last update

Sourcesinfo

Product: ffmpeg.org

Advisory: code.ffmpeg.org
Status: Confirmed

CVE: CVE-2026-65706 (🔒)
GCVE (CVE): GCVE-0-2026-65706
GCVE (VulDB): GCVE-100-382793

Entryinfo

Created: 07/23/2026 21:56
Changes: 07/23/2026 21:56 (55)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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