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Vulnerabilities

Vulnerability · 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.

Published Jul 8, 2026 · catalog updated Oct 25, 2026 · ssh in OpenSSH before

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-60002. EPSS is 0.30%. Act only if a listed version of ssh in OpenSSH before is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (ssh in OpenSSH before).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.30%
Remediation
Version ranges on file
Affected products
cpe openbsd/openssh

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.)

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe openbsd/openssh< 10.4

How to fix CVE-2026-60002

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-60002. EPSS is 0.30%. Act only if a listed version of ssh in OpenSSH before is installed.

Which versions are affected?

Compare what you have installed with < 10.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

OpenSSH security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 8, 2026 · Monitored products — critical

    Detected

    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.)

  2. Oct 25, 2026 · Monitored products — critical

    Updated

    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.)

Sources

  • CVE.orgVulnerability recordCVE-2026-60002

    Official CVE identifier

    cve.org
  • Monitored products — criticalVendor advisoryCVE-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.)

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — criticalNov 4, 2026