by Kastro CVE-2026-7598
Red Hat Red Hat Hardened Images — libssh2 userauth.c userauth_password integer overflow
Description · from the CVE record
A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.
Affected
ProductAffectedFixed inSource
libssh21.11.0–CNA
libssh21.11.1–CNA
Red Hat Hardened Imagessee advisory1.95.0-5.hum1redhat-SADP
Red Hat Hardened Imagessee advisory1.11.1-5.1.hum1redhat-SADP
Red Hat Enterprise Linux 6see advisory–redhat-SADP
Red Hat Enterprise Linux 7see advisory–redhat-SADP
Red Hat OpenShift Container Platform 4see advisory–redhat-SADP
Red Hat OpenShift Update Servicesee advisory–redhat-SADP
Red Hat Trusted Profile Analyzersee advisory–redhat-SADP
Scores by source
redhat-SADP (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
VulDB (CNA)7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
VulDB (CNA)7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
VulDB (CNA)6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial