Use After Free in Openbsd Openssh

CVE-2026-73282

In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Openbsd Openssh — versions 0

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-73282?: CVE-2026-73282 is a medium-severity vulnerability in Openbsd Openssh, classified under Use After Free. CVSS score: 4.8/10. Published 2026-08-11.
How severe is CVE-2026-73282?: Medium severity. CVSS v3 base score is 4.8 out of 10.