VulnerabilityModified
CVE-2023-28531
ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints.
CRITICAL 9.8EPSS 2.99%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.99% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- openbsd/openssh · netapp/brocade fabric operating system · netapp/hci bootstrap os · netapp/solidfire element os
- Source
- cve@mitre.org
EPSS 3.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AN2UDTXEUSKFIOIYMV6JNI5VSBMYZOFT/
- https://security.gentoo.org/glsa/202307-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230413-0008/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5586
- https://www.openwall.com/lists/oss-security/2023/03/15/8Mailing List, Release Notes
- 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/202307-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230413-0008/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5586
- https://www.openwall.com/lists/oss-security/2023/03/15/8Mailing List, Release Notes
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.