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

Last Updated

2026-08-07

EPSS Score

1.03% (percentile: 61.6%)

Affected Products (2)

Other

• 21450-17084
• 21264-17084

Revision History

• 2026-06-13: Information published.
• 2026-06-18: Information published.
• 2026-06-20: Information published.
• 2026-06-23: Information published.
• 2026-08-07: Information published.