Medium severity5.5NVD Advisory· Published Jun 15, 2026· Updated Jun 16, 2026

CVE-2025-55643

Description

A NULL pointer dereference in the TrackWriter handling component (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Gpac/Gpacinferred2 versions
<=2.4+ 1 more
- (no CPE)range: <=2.4
- cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*range: <26.02.0
Gpac/MP4Boxllm-fuzzy
Range: =2.4

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2026/06/13/5nvdExploitMailing ListThird Party Advisory
infosec.exchange/@sigdevel/116736819671963019nvdExploitMitigationPatchThird Party Advisory

News mentions

GPAC MP4Box v2.4: 13 Memory-Safety CVEs Disclosed in Single-Day Batch
Vypr Intelligence · Jun 15, 2026

cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000