Skip to content
Fencer Vulns
medium 5.5

CVE-2021-33365 json

Memory leak in the gf_isom_get_root_od function in MP4Box in GPAC 1.0.1 allows attackers to read memory via a crafted file.

published 2021-09-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20071

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

Memory leak in the gf_isom_get_root_od function in MP4Box in GPAC 1.0.1 allows attackers to read memory via a crafted file.

Patch / fix

  • gpac Debian 11 1.0.1+dfsg1-4+deb11u2

debian advisories DEBIAN-CVE-2021-33365

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

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:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

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.