What’s Vulnerable › Vulnerabilities

CVE-2020-21596

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-16 · updated 2026-06-17
• Weakness: CWE-120

Description

libde265 v1.0.4 contains a global buffer overflow in the decode_CABAC_bit function, which can be exploited via a crafted a file.

Affected products

• Debian Linux: 10.0, 11.0
• strukturag libde265: 1.0.4

References

• https://github.com/strukturag/libde265/issues/236
• https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html
• https://www.debian.org/security/2023/dsa-5346
• https://github.com/strukturag/libde265/issues/236
• https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html
• https://www.debian.org/security/2023/dsa-5346

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