What is CVE-2026-73283?

CVE-2026-73283 is a low-severity vulnerability in OpenBSD OpenSSH, classified under Always-Incorrect Control Flow Implementation. CVSS score: 2.5/10. Published 2026-08-11.

How severe is CVE-2026-73283?

Low severity. CVSS v3 base score is 2.5 out of 10.

Vulnerability in OpenBSD OpenSSH

CVE-2026-73283

In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not.

Published 2026-08-11 · last modified 2026-09-04.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.5th percentile), scored 2026-09-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

OpenBSD OpenSSH — versions 0

Weakness classification (CWE)

CWE-670 — Always-Incorrect Control Flow Implementation

References

www.openssh.org/releasenotes.html (Product, Release Notes)

Frequently asked questions

What is CVE-2026-73283?: CVE-2026-73283 is a low-severity vulnerability in OpenBSD OpenSSH, classified under Always-Incorrect Control Flow Implementation. CVSS score: 2.5/10. Published 2026-08-11.
How severe is CVE-2026-73283?: Low severity. CVSS v3 base score is 2.5 out of 10.