CVE-2023-38146

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

37.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2023-09-12 16:58Z3 YR AGO

Last updated

2025-10-30 18:17Z12 MO AGO

Reserved

2023-07-12

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

4298bc8aaed1d3bf825bcbf7113f8447c46773ebbd220fc323f4141644034ceb

• msrc.microsoft.comWindows Themes Remote Code Execution Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38146vendor-advisory
• packetstormsecurity.comhttp://packetstormsecurity.com/files/176391/Themebleed-Windows-11-Themes-Arbitrary-Code-Execution.html