CVE-2026-125174
Received Received - Intake

NULL Pointer Dereference in FFmpeg via Hap Video Decoder

Publication date: 2026-11-09

Last updated on: 2026-11-09

Assigner: VulnCheck

Description
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains a NULL pointer dereference vulnerability in ff_hap_set_chunk_count() in libavcodec/hap.c, where a shadowed return variable masks reallocation failures. Attackers can supply a crafted Hap video frame with an oversized chunk count so the decoder writes through a NULL chunk table, crashing the application.

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Meta Information

Published
2026-11-09
Last Modified
2026-11-09
Generated
2026-11-09
EPSS Evaluated
N/A
NVD
CVE-2026-125174
EUVD
EUVD-2026-120263

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
FFmpeg FFmpeg From 0 (inc) to 8.1.3 (exc)
FFmpeg FFmpeg From 9.0 (inc) to 9.0.2 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-252 The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

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