CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-13

EPSS Score

0.06% (percentile: 18.9%)

Affected Products (9)

Other

• 21275-17084
• 21217-17084
• 21450-17084
• 21370-17084
• 21264-17084
• 21380-17084
• 21400-17084
• 21433-17084
• 21277-17084

Revision History

• 2026-06-13: Information published.