CVE-2018-20001

6.5 mediumEPSS 1.0%

Medium (6.5) in libav libav. EPSS 1.0% chance of exploitation in the next 30 days.

In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.

Severity

CVSS 3.0

6.5 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2018-12-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libav:libav

References

https://bugzilla.libav.org/show_bug.cgi?id=1141
https://bugzilla.libav.org/show_bug.cgi?id=1141

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