CVE-2023-4156

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Low. 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

2023-09-25 17:20Z3 YR AGO

Last updated

2024-09-24 15:36Z2 YR AGO

Reserved

2023-08-04

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 4.4)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

22d844d5f5d92986eb0f42b2c8c8f7535a09e8602b7f2e76abcc789e4faa1718

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4156vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2215930https://bugzilla.redhat.com/show_bug.cgi?id=2215930issue-trackingx_refsource_REDHAT