What’s Vulnerable › Vulnerabilities

CVE-2023-28531

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-17 · updated 2026-10-14
• Weakness: CWE-284

Description

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.

Affected products

• NetApp Brocade Fabric Operating System: all versions
• NetApp Hci Bootstrap Os: all versions
• NetApp Solidfire Element Os: all versions
• OpenSSH: from 8.9 before 9.3 — fixed in 9.3

How to fix

Upgrade to a fixed version: OpenSSH 9.3. Check the vendor advisory for mitigations.

References

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/
• https://security.gentoo.org/glsa/202307-01
• https://security.netapp.com/advisory/ntap-20230413-0008/
• https://www.debian.org/security/2023/dsa-5586
• https://www.openwall.com/lists/oss-security/2023/03/15/8
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/
• https://security.gentoo.org/glsa/202307-01
• https://security.netapp.com/advisory/ntap-20230413-0008/
• https://www.debian.org/security/2023/dsa-5586
• https://www.openwall.com/lists/oss-security/2023/03/15/8
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html

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