CVE-2026-98686: smb: client: discard post-EOF pagecache when extending a file via zero range

Overview

Severity

High (CVSS 7.1)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-20

Last Updated

2026-10-20

EPSS Score

0.17% (percentile: 5.7%)

Affected Products (1)

Other

• 21932-17084

Revision History

• 2026-10-20: Information published.
• 2026-10-20: Information published.