CVE-2021-36411

Name: CVE-2021-36411
Creator: NVD / NIST
Published: 2022-01-10T23:15:09.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.16%

Last modified Jun 17, 2026

CVE-2021-36411 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue has been found in libde265 v1.0.8 due to incorrect access control. A SEGV caused by a READ memory access in function derive_boundaryStrength of deblock.cc has occurred. EPSS estimates a 1.16% chance of exploitation in the next 30 days.

Description

An issue has been found in libde265 v1.0.8 due to incorrect access control. A SEGV caused by a READ memory access in function derive_boundaryStrength of deblock.cc has occurred. The vulnerability causes a segmentation fault and application crash, which leads to remote denial of service.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.16%

63.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Struktur	Libde265	1.0.8
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://github.com/strukturag/libde265/issues/302Exploit, Issue Tracking
https://lists.debian.org/debian-lts-announce/2022/12/msg00027.htmlIssue Tracking, Mailing List
https://www.debian.org/security/2023/dsa-5346Issue Tracking
https://github.com/strukturag/libde265/issues/302Exploit, Issue Tracking
https://lists.debian.org/debian-lts-announce/2022/12/msg00027.htmlIssue Tracking, Mailing List
https://www.debian.org/security/2023/dsa-5346Issue Tracking

Timeline

Published: Jan 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36411?

How severe is CVE-2021-36411?

CVE-2021-36411 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.16% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36411?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36411?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST