CVE-2023-38140

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

1.04% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 61.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. 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 16:58Z2 YR AGO

Last updated

2025-10-30 18:17Z10 MO AGO

Reserved

2023-07-12

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-908Use of Uninitialized ResourceBase

Data version

5.2

Document digest

590883a290e66196fe54c919faa27c3aa7f510a5e346649770c8062338a923fb

• msrc.microsoft.comWindows Kernel Information Disclosure Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38140vendor-advisory
• packetstormsecurity.comhttp://packetstormsecurity.com/files/175108/Microsoft-Windows-Kernel-Paged-Pool-Memory-Disclosure.html