CVE-2026-60002: CWE-416 Use After Free in 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.)
AI Analysis
Technical Summary
CVE-2026-60002 is a use-after-free vulnerability (CWE-416) in OpenSSH prior to version 10.4. The flaw occurs on the client side during a key re-exchange if the server changes its host key, potentially allowing an attacker to exploit the freed memory. The vulnerability has a CVSS 3.1 base score of 7.7, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality and integrity, and low impact on availability.
Potential Impact
Successful exploitation could allow an attacker to compromise the confidentiality and integrity of the SSH client session. The availability impact is low. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor OpenBSD and OpenSSH advisories for updates and apply patches once available.
CVE-2026-60002: CWE-416 Use After Free in OpenBSD OpenSSH
Description
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.)
CVSS v3.1
Score 7.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-60002 is a use-after-free vulnerability (CWE-416) in OpenSSH prior to version 10.4. The flaw occurs on the client side during a key re-exchange if the server changes its host key, potentially allowing an attacker to exploit the freed memory. The vulnerability has a CVSS 3.1 base score of 7.7, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality and integrity, and low impact on availability.
Potential Impact
Successful exploitation could allow an attacker to compromise the confidentiality and integrity of the SSH client session. The availability impact is low. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor OpenBSD and OpenSSH advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-07-08T00:17:32.675Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4da0cec9d9e3dbe333a4b9
Added to database: 07/08/2026, 00:58:54 UTC
Last enriched: 07/15/2026, 12:20:09 UTC
Last updated: 08/22/2026, 10:52:10 UTC
Views: 1587
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