CVE-2026-72380: xen/pvcalls: bound backend response req_id before indexing rsp[]

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-10-23

EPSS Score

0.40% (percentile: 32.9%)

Affected Products (1)

Other

• 21932-17084

Revision History

• 2026-10-23: Information published.