What is CVE-2018-21017?

CVE-2018-21017 is a medium-severity vulnerability in Gpac, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2019-09-16.

How severe is CVE-2018-21017?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2018-21017 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Gpac

CVE-2018-21017

GPAC 0.7.1 has a memory leak in dinf_Read in isomedia/box_code_base.c.

Published 2019-09-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (68.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Gpac — versions 0.7.1

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

Public proof-of-concept exploits

Marsman1996/pocs

References

github.com/gpac/gpac/issues/1183 (Exploit, Patch, Third Party Advisory)
github.com/gpac/gpac/commit/d2371b4b204f0a3c0af51ad4e9b491144dd1225c (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-21017?: CVE-2018-21017 is a medium-severity vulnerability in Gpac, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2019-09-16.
How severe is CVE-2018-21017?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-21017 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.