PT-2026-141033

CVE-2026-125205

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Published

2026-11-09

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Updated

2026-11-09

Description by

CVSS 3.1
5.5
Medium
MetricsAV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
FFmpeg through 9.0.2 contains an unbounded memory allocation vulnerability in the av1 frame merge bitstream filter that allows attackers to exhaust memory by never sending a temporal delimiter OBU. Attackers can supply a crafted .obu file opened by the AV1 OBU or Annex B demuxers, forcing unlimited OBU buffering per temporal unit and causing denial of service.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-770: Allocation of Resources Without Limits or Throttling
Related identifiers
CVE-2026-125205
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