What is CVE-2023-2840?

CVE-2023-2840 is a critical-severity vulnerability in Gpac, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2023-05-22.

How severe is CVE-2023-2840?

Critical severity. CVSS v3 base score is 9.8 out of 10.

NULL pointer dereference in Gpac

CVE-2023-2840

NULL Pointer Dereference in GitHub repository gpac/gpac prior to 2.2.2.

Published 2023-05-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Gpac
Gpac Gpac/gpac — versions unspecified

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

huntr.dev/bounties/21926fc2-6eb1-4e24-8a36-e60f487d0257 (Exploit, Patch)
github.com/gpac/gpac/commit/ba59206b3225f0e8e95a27eff41cb1c49ddf9a37 (Patch)
www.debian.org/security/2023/dsa-5411 (vendor-advisory)

Frequently asked questions

What is CVE-2023-2840?: CVE-2023-2840 is a critical-severity vulnerability in Gpac, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2023-05-22.
How severe is CVE-2023-2840?: Critical severity. CVSS v3 base score is 9.8 out of 10.