CVE-2023-4394

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 12.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2023-08-17 12:49Z3 YR AGO

Last updated

2025-02-27 21:03Z1 YR AGO

Reserved

2023-08-17

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.7)

CNA CVSS vector

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

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-416Use After FreeVariant

Data version

5.1

Document digest

da0876aef6ceee23947a98642e792809aaf25322c5fd269265c0550823b7bbef

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4394vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2219263https://bugzilla.redhat.com/show_bug.cgi?id=2219263issue-trackingx_refsource_REDHAT
• patchwork.kernel.orghttps://patchwork.kernel.org/project/linux-btrfs/patch/20220815151606.3479183-1-r33s3n6@gmail.com/