Cyber Resilience

CVE-2020-18776

MediumPublic PoC

Published: 23 August 2021

Published
23 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0024 47.1th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-18776 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Libav Libav. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 47.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

In Libav 12.3, there is a segmentation fault in vc1_decode_b_mb_intfr in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

CWE(s)
CWE-125

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

libav
libav
12.3

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References