CVE-2023-28531Critical· 9.8▾ Midnightssh-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.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.5 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Jul 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
2.2%
2.2% → 2.3%
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.
openssh >= 8.9, < 9.3brocade_fabric_operating_systemhci_bootstrap_ossolidfire_element_osUpgrade past the affected range:
openssh 9.3Connected by shared product, vendor, weakness, or advisory.
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CVE-2024-6387High· 8.1A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd)
CVE-2025-26465Medium· 6.8A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled
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