What is CVE-2023-33718?

CVE-2023-33718 is a high-severity vulnerability in Mp4v2 Project, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.8/10. Published 2023-05-31.

How severe is CVE-2023-33718?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Mp4v2 Project

CVE-2023-33718

mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp

Published 2023-05-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.0% 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

Mp4v2 Project — versions 2.1.3

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

github.com/enzo1982/mp4v2/issues/37 (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2023-33718?: CVE-2023-33718 is a high-severity vulnerability in Mp4v2 Project, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.8/10. Published 2023-05-31.
How severe is CVE-2023-33718?: High severity. CVSS v3 base score is 8.8 out of 10.