What is CVE-2022-47657?

CVE-2022-47657 is a high-severity vulnerability in Gpac, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2023-01-05.

How severe is CVE-2022-47657?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2022-47657 known to be exploited?

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

Buffer overflow in Gpac

CVE-2022-47657

GPAC MP4Box 2.1-DEV-rev644-g5c4df2a67 is vulnerable to buffer overflow in function hevc_parse_vps_extension of media_tools/av_parsers.c:7662

Vulnerability class: Buffer Overflow

Published 2023-01-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (26.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Gpac

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

DiRaltvein/memory-corruption-examples

References

github.com/gpac/gpac/issues/2355 (Exploit, Patch, Third Party Advisory, Issue Tracking)
www.debian.org/security/2023/dsa-5411 (vendor-advisory)

Frequently asked questions

What is CVE-2022-47657?: CVE-2022-47657 is a high-severity vulnerability in Gpac, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2023-01-05.
How severe is CVE-2022-47657?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-47657 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.