CVE-2023-51767

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 51.0% of scored records. A rank, not a probability.

NVD base score

7.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-15.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-12-24 00:00Z2 YR AGO

Last updated

2026-10-15 00:16Z15 DAYS AGO

Reserved

2023-12-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-287Improper AuthenticationClass

Data version

5.2

Document digest

d8f36a3d7530e7d76f67a17fa33f54019100964cd73129df72a28b8fdef517e9

• arxiv.orghttps://arxiv.org/abs/2309.02545
• github.comhttps://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878
• github.comhttps://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2255850
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-51767
• ubuntu.comhttps://ubuntu.com/security/CVE-2023-51767
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240125-0006/
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2025/09/22/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/10/01/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/22/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/24/4
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/22/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/23/4
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/10/01/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/26/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/26/4
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/3
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/5
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/6
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/7
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/29/4
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/29/5
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/23/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/29/6
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/23/3
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/23/5
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/24/7
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/25/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/25/6
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/27/4
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/28/7
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/29/1
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-794697.html