CVE-2025-55640

CVE-2025-55640

published October 16, 2026

CVSS
—
EPSS
0%
Percentile
7.7
In the wild
Unconfirmed
What it is

A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00185 · 7.7th percentile
Published
2026-10-16T23:16Z
References (5)
https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc · [email protected]https://github.com/gpac/gpac/issues/3261 · [email protected]https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4 · [email protected]https://infosec.exchange/@sigdevel/116769271709415444 · [email protected]http://www.openwall.com/lists/oss-security/2026/10/17/2 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 18 OCT 03:25Z
    EPSS moved — → 0%
    epss
  • 16 OCT 00:00Z
    A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via…
    cvelistv5
  • 16 OCT 00:00Z
    A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via…
    cvelistv5