What is CVE-2023-2838?

CVE-2023-2838 is a critical-severity vulnerability in Gpac, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2023-05-22.

How severe is CVE-2023-2838?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Out-of-bounds Read in Gpac

CVE-2023-2838

Out-of-bounds Read in GitHub repository gpac/gpac prior to 2.2.2.

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.8th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% 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-125 — Out-of-bounds Read

References

huntr.dev/bounties/711e0988-5345-4c01-a2fe-1179604dd07f (Exploit, Patch)
github.com/gpac/gpac/commit/c88df2e202efad214c25b4e586f243b2038779ba (Patch)
www.debian.org/security/2023/dsa-5411 (vendor-advisory)

Frequently asked questions

What is CVE-2023-2838?: CVE-2023-2838 is a critical-severity vulnerability in Gpac, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2023-05-22.
How severe is CVE-2023-2838?: Critical severity. CVSS v3 base score is 9.1 out of 10.