In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00426.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*

Configuration 2 [-]

OR cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors Products
Debian Subscribe
Debian Linux Subscribe
Openbsd Subscribe
Openssh Subscribe
Advisories
Source ID Title
Debian DSA Debian DSA DSA-5586-1 openssh security update
Ubuntu USN Ubuntu USN USN-6565-1 OpenSSH vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://seclists.org/fulldisclosure/2024/Mar/21 cve-icon cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-019113.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-082556.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-457936.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-769027.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-794697.html cve-icon
https://github.com/openssh/openssh-portable/commit/881d9c6af9da4257c69c327c4e2f1508b2fa754b cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-51384 cve-icon
https://security.netapp.com/advisory/ntap-20240105-0005/ cve-icon cve-icon
https://support.apple.com/kb/HT214084 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-51384 cve-icon
https://www.debian.org/security/2023/dsa-5586 cve-icon cve-icon
https://www.openssh.com/txt/release-9.6 cve-icon cve-icon
https://www.openwall.com/lists/oss-security/2023/12/18/2 cve-icon cve-icon
History

Thu, 15 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
References

Thu, 28 May 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 12 May 2026 12:30:00 +0000

Type Values Removed Values Added
References

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00038}

 epss

{'score': 0.00039}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-15T00:12:52.726Z

Reserved: 2023-12-18T00:00:00.000Z

Link: CVE-2023-51384

cve-icon Vulnrichment

Updated: 2024-08-02T22:32:09.165Z

cve-icon NVD

Status : Modified

Published: 2023-12-18T19:15:08.720

Modified: 2026-10-15T01:17:12.333

Link: CVE-2023-51384

cve-icon Redhat

Severity : Low

Publid Date: 2023-12-18T00:00:00Z

Links: CVE-2023-51384 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses