What is CVE-2021-30014?

CVE-2021-30014 is a medium-severity vulnerability in Gpac, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2021-04-19.

How severe is CVE-2021-30014?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Integer overflow in Gpac

CVE-2021-30014

There is a integer overflow in media_tools/av_parsers.c in the hevc_parse_slice_segment function in GPAC from v0.9.0-preview to 1.0.1 which results in a crash.

Vulnerability class: Integer Overflow

Published 2021-04-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Gpac

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/gpac/gpac/issues/1721 (Exploit, Third Party Advisory)
github.com/gpac/gpac/commit/51cdb67ff7c5f1242ac58c5aa603ceaf1793b788 (Patch, Third Party Advisory)
github.com/gpac/gpac/blob/v0.9.0-preview/src/media_tools/av_parsers.c (Product)

Frequently asked questions

What is CVE-2021-30014?: CVE-2021-30014 is a medium-severity vulnerability in Gpac, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2021-04-19.
How severe is CVE-2021-30014?: Medium severity. CVSS v3 base score is 5.5 out of 10.