CVE-2023-1667

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 68.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

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

2023-05-26 00:00Z3 YR AGO

Last updated

2024-08-02 05:57Z2 YR AGO

Reserved

2023-03-27

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

4c9304ba346170b18dbe03ce277c7bb316364a4b9d7df4dd648c9ac562b6deb3

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-1667
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2182199
• www.libssh.orghttp://www.libssh.org/security/advisories/CVE-2023-1667.txt
• lists.fedoraproject.orgFEDORA-2023-5fa5ca2043https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/vendor-advisory
• lists.debian.org[debian-lts-announce] 20230529 [SECURITY] [DLA 3437-1] libssh security updatehttps://lists.debian.org/debian-lts-announce/2023/05/msg00029.htmlmailing-list
• security.gentoo.orgGLSA-202312-05https://security.gentoo.org/glsa/202312-05vendor-advisory