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CVE-2021-3156

exploited in the wild☆ pin

CVSS

—

Reports

2

First seen

Jan 27, 2021

Last seen

Aug 20, 2026

Affected product

Sudo 1.8.2–1.8.31p2, 1.9.0–1.9.5p1

Associated actors

Recent reports

UAT-10147: Chinese-speaking adversary integrates agentic AI into post-compromise operations

Cisco TalosAug 20, 2026 High

Vulnerability in Sudo: Heap-Based Buffer Overflow Allows Privilege Escalation

GovCERT.HKJan 27, 2021

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