CVE-2026-2291: CVE-2026-2291

Overview

Severity

High (CVSS 7.3)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-15

Last Updated

2026-06-03

EPSS Score

0.75% (percentile: 50.4%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 1 repositories

Affected Products (2)

Other

• 21387-17084

Open Source Software

• azl3 dnsmasq 2.90-1 on Azure Linux 3.0

Revision History

• 2026-05-15: Information published.
• 2026-05-27: Information published.
• 2026-06-03: Information published.