CVE-2025-55639

MEDIUM 6.5

CVSS Score

6.5

EPSS Score

0.3%

EPSS Percentile

24th

GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Vendor	n/a
Product	n/a
Published	Jun 23, 2026
Last Updated	Jun 26, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/gpac/gpac/issues/3260 github.com: https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4 github.com: https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9 infosec.exchange: https://infosec.exchange/@sigdevel/116769184815236865 openwall.com: http://www.openwall.com/lists/oss-security/2026/06/26/2