CVE-2026-2673: OpenSSL TLS 1.3 server may choose unexpected key agreement group

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Mar

Released

2026-03-17

Last Updated

2026-04-22

EPSS Score

0.02% (percentile: 4.5%)

Affected Products (7)

Open Source Software

• azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
• azl3 rust 1.90.0-4 on Azure Linux 3.0
• azl3 rust 1.75.0-27 on Azure Linux 3.0
• azl3 rust 1.75.0-25 on Azure Linux 3.0
• azl3 rust 1.90.0-6 on Azure Linux 3.0

Other

• 21217-17084
• 21192-17084

Revision History

• 2026-03-17: Information published.
• 2026-03-31: Information published.
• 2026-04-09: Information published.
• 2026-04-14: Information published.
• 2026-04-15: Information published.
• 2026-04-17: Information published.
• 2026-04-22: Information published.