CVE-2026-7598: libssh2 userauth.c userauth_password integer overflow

Overview

Severity

High (CVSS 7.3)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-03

Last Updated

2026-06-02

EPSS Score

0.36% (percentile: 27.2%)

Affected Products (5)

Other

• 18207-17086
• 20882-17086
• 20881-17084
• 18213-17084
• 21318-17084

Revision History

• 2026-05-03: Information published.
• 2026-05-04: Information published.
• 2026-05-05: Information published.
• 2026-05-06: Information published.
• 2026-05-06: Information published.
• 2026-05-19: Information published.
• 2026-06-02: Information published.