{"id":"CVE-2023-28531","title":"ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints","summary":"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.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-284"],"vendor":"openbsd","product":"openssh","affected":["openssh >= 8.9, < 9.3","brocade_fabric_operating_system","hci_bootstrap_os","solidfire_element_os"],"patched":["openssh 9.3"],"published":"2023-03-17","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-28531","references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/","label":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202307-01","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20230413-0008/","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2023/dsa-5586","label":"cve@mitre.org"},{"url":"https://www.openwall.com/lists/oss-security/2023/03/15/8","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202307-01","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20230413-0008/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5586","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openwall.com/lists/oss-security/2023/03/15/8","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.02267,"epssPercentile":0.82086,"ingestedAt":"2026-07-14T12:36:47.785Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-01-11T20:20:13.493424Z"},"slug":"CVE-2023-28531","body":"## Overview\n\nssh-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.\n\n## Affected\n\n- `openssh >= 8.9, < 9.3`\n- `brocade_fabric_operating_system`\n- `hci_bootstrap_os`\n- `solidfire_element_os`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `openssh 9.3`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.5,"exploitation":0,"ransomware":0},"changes":[]}