CVE-2026-90413: IB/isert: reject login PDUs declaring more data than was received

Overview

Severity

Critical (CVSS 9.1)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-19

EPSS Score

0.25% (percentile: 17.1%)

Affected Products (1)

Other

• 21684-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-19: Information published.