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Fencer Vulns
medium 6.5

CVE-2018-20409 json

An issue was discovered in Bento4 1.5.1-627.

published 2018-12-23 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12967

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

An issue was discovered in Bento4 1.5.1-627. There is a heap-based buffer over-read in AP4_AvccAtom::Create in Core/Ap4AvccAtom.cpp, as demonstrated by mp42hls.

Exploit prediction

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/axiomatic-systems/Bento4/issues/345 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

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.