Integer overflow in Matroska Libebml

CVE-2023-52339

In libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading or writing. It may result in buffer overflows.

Vulnerability class: Integer Overflow

EPSS: 0.011 (61.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-52339?
CVE-2023-52339 is a medium-severity vulnerability in Matroska Libebml, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2024-01-12.
How severe is CVE-2023-52339?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-52339 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.