Exploited· due 2022-04-27
CVE-2021-3156
Sudo Sudo
Sudo contains an off-by-one error that can result in a heap-based buffer overflow, which allows for privilege escalation.
Exploitation status
- CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
- US federal civilian agencies are required to remediate it by 2022-04-27. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
Required action
Apply updates per vendor instructions.
CISA’s wording, unedited.
Scoring
- CVSS
- Not yet scored
Dates
- Published
- 2022-04-06
- Added to KEV
- 2022-04-06
- Remediation due
- 2022-04-27
- Sources
- CISA KEV