CVE-2026-19931: Negotiate ambient user conn reuse

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-08

Last Updated

2026-10-17

EPSS Score

0.75% (percentile: 54.4%)

Affected Products (1)

Other

• 21707-17084

Revision History

• 2026-09-08: Information published.
• 2026-09-09: Information published.
• 2026-09-25: Information published.
• 2026-10-16: Information published.
• 2026-10-17: Information published.