What is CVE-2023-4758?

CVE-2023-4758 is a medium-severity vulnerability in Gpac, classified under Buffer Over-read. CVSS score: 5.5/10. Published 2023-09-04.

How severe is CVE-2023-4758?

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

Out-of-bounds Read in Gpac

CVE-2023-4758

Buffer Over-read in GitHub repository gpac/gpac prior to 2.3-DEV.

Published 2023-09-04 · 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: 0.003 (16.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Gpac
Gpac Gpac/gpac — versions unspecified

Weakness classification (CWE)

References

huntr.dev/bounties/2f496261-1090-45ac-bc89-cc93c82090d6 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/gpac/gpac/commit/193633b1648582444fc99776cd741d7ba0125e86 (Patch)

Frequently asked questions

What is CVE-2023-4758?: CVE-2023-4758 is a medium-severity vulnerability in Gpac, classified under Buffer Over-read. CVSS score: 5.5/10. Published 2023-09-04.
How severe is CVE-2023-4758?: Medium severity. CVSS v3 base score is 5.5 out of 10.