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Fencer Intel
medium 5.5

CVE-2019-20631 json

An issue was discovered in libgpac.a in GPAC before 0.8.0, as demonstrated by MP4Box.

published 6y ago modified 4mo ago also EUVD-2019-11170

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

An issue was discovered in libgpac.a in GPAC before 0.8.0, as demonstrated by MP4Box. It contains an invalid pointer dereference in gf_list_count in utils/list.c that can cause a denial of service via a crafted MP4 file.

Patch / fix

  • gpac gpac 0.8.0
  • gpac Debian 11 1.0.1+dfsg1-2

debian advisories DEBIAN-CVE-2019-20631

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Exploit prediction

0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/gpac/gpac/issues/1270 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/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
  • CWE-763 Release of Invalid Pointer or Reference

References

Sources

Fencer Intel 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.