CVE-2026-5172
Publication date 11 May 2026
Last updated 13 May 2026
Ubuntu priority
Description
Heap OOB read resulting in segfault on crafted DNS packets.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| dnsmasq | 26.04 LTS resolute |
Vulnerable
|
| 25.10 questing |
Vulnerable
|
|
| 24.04 LTS noble |
Vulnerable
|
|
| 22.04 LTS jammy |
Vulnerable
|
|
| 20.04 LTS focal |
Vulnerable
|
|
| 18.04 LTS bionic |
Vulnerable
|
|
| 16.04 LTS xenial |
Vulnerable
|
|
| 14.04 LTS trusty |
Not affected
|
References
Related Ubuntu Security Notices (USN)
- USN-8268-1
- Dnsmasq vulnerabilities
- 12 May 2026