CVE-2026-63073: Untrusted Sender DN Used as Format String in CMP Response Validation

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/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-27

EPSS Score

0.93% (percentile: 58.2%)

Affected Products (5)

Other

• 21655-17084
• 21500-17084
• 21734-17084
• 21761-17084
• 21716-17084

Revision History

• 2026-08-27: Information published.