PT-2021-5341 · Microsoft · Hevc Video Extensions

Dhanesh Kizhakkinan · Published 2021-07-13 · Updated 2023-12-28 · CVE-2021-33777

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions HEVC Video Extensions (affected versions not specified)

Description The issue is related to incorrect code generation management in the HEVC Video Extensions codec. Exploitation of this issue may allow a remote attacker to execute arbitrary code.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-06170

CVE-2021-33777

Affected Products

Hevc Video Extensions

References · 13

• https://nvd.nist.gov/vuln/detail/CVE-2021-33777 · Security Note
• https://osv.dev/vulnerability/CVE-2021-33777 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33777 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-06170 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33777 · Vendor Advisory
• https://t.me/cvenotify/17768 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021071321 · Note
• https://t.me/cvenotify/17609 · Telegram Post
• https://t.me/cvenotify/17764 · Telegram Post
• https://t.me/cvenotify/17614 · Telegram Post
• https://t.me/cvenotify/17766 · Telegram Post
• https://t.me/cibsecurity/26164 · Telegram Post
• https://t.me/cvenotify/17765 · Telegram Post