CVE-2025-55653: GPAC MP4Box · Divide By Zero
Source CVE Database V5
Not known to be exploited · CVSS 5.5 Medium.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Users should avoid processing untrusted MP4 files that could trigger this condition. Monitor vendor advisories for updates regarding remediation.
Description
GPAC MP4Box version 2.4 contains a vulnerability in the gf_parse_lfrac function where processing a crafted MP4 file with a zero-denominator fraction string causes a division by zero, resulting in a floating point exception and process termination. This leads to a denial of service condition without impacting confidentiality or integrity.