Use After Free in OpenBSD OpenSSH
CVE-2026-60002
ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.)
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.003 (20.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- OpenBSD OpenSSH — versions 0
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2026/07/06/5 (Mailing List, Release Notes)
- marc.info/ (Release Notes)
- www.openssh.org/releasenotes.html (Release Notes)
Frequently asked questions
- What is CVE-2026-60002?
- CVE-2026-60002 is a high-severity vulnerability in OpenBSD OpenSSH, classified under Use After Free. CVSS score: 7.7/10. Published 2026-07-08.
- How severe is CVE-2026-60002?
- High severity. CVSS v3 base score is 7.7 out of 10.