CVE-2026-34181: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys

Overview

Severity

High (CVSS 7.4)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-13

Last Updated

2026-08-07

EPSS Score

0.24% (percentile: 14.5%)

Affected Products (5)

Other

• 21645-17084
• 21217-17084
• 21370-17084
• 21400-17084
• 21433-17084

Revision History

• 2026-06-13: Information published.
• 2026-06-23: Information published.
• 2026-08-07: Information published.