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Fencer Vulns
medium 5.5

CVE-2023-29576 json

Bento4 v1.6.0-639 was discovered to contain a segmentation violation via the AP4_TrunAtom::SetDataOffset(int) function in Ap4TrunAtom.h.

published 2023-04-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33117

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

Bento4 v1.6.0-639 was discovered to contain a segmentation violation via the AP4_TrunAtom::SetDataOffset(int) function in Ap4TrunAtom.h.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/axiomatic-systems/Bento4/issues/844 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/z1r00/fuzz_vuln/blob/main/Bento4/mp4decrypt/sigv/readme.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.