3.5

CVE-2026-73281: openbsd openssh

CVSS: 3.5v3.1LowAnalyzed
AliasesALPINE-CVE-2026-73281UBUNTU-CVE-2026-73281DEBIAN-CVE-2026-73281
Published 11-08-2026Last modified 11-08-2026
Open JSON

Vulnerability summary

CVE-2026-73281 is a low (CVSS 3.5) vulnerability in openbsd openssh. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.5% of scored vulnerabilities.

Overall risk
14/100
0100
Low · default modelHow is this calculated?
CVSS score
3.5/10
010
Low · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 2
MGASA-2026-0521RHSA-2026:69129RHSA-2026:69130RHSA-2026:70719SUSE-SU-2026:24140-1USN-8721-1

Timeline

  1. 11-08-2026
    PublishedVulnerability first disclosed.
  2. 11-08-2026
    Last modifiedVulnerability information updated.

Description

In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the session-bind@openssh.com extension.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • opensshAll versions (No fix recorded) | < 1:10.5p1-1
  • openssh-gssapi< 1:10.5p1-1
Ubuntu2 products
  • opensshAll versions (No fix recorded) | < 1:8.9p1-3ubuntu0.17 | < 1:9.6p1-3ubuntu13.19 | < 1:9.6p1-3ubuntu13.19+Fips1 | < 1:10.2p1-2ubuntu3.6
  • openssh-ssh1All versions (No fix recorded)
Alpine1 product
  • openssh< 10.3_p1-r1
Openbsd1 product

4 vendors · 6 products

References

8 links