⚠ Actively exploited in ransomware campaigns
This vulnerability is on the CISA Known Exploited Vulnerabilities list and has been used in known ransomware attacks. CISA required action: Apply updates per vendor instructions.. Due date: 2023-03-07.

CVE-2023-23376 — Heap-based Buffer Overflow in Microsoft Windows 10 Version 1507

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write18 documents11 sources
Severity
7.8HIGHNVD
EPSS
21.1%
top 4.34%
CISA KEV
KEVRansomware
Added 2023-02-14
Due 2023-03-07
Exploit
Exploited in wild
Active exploitation observed
Affected products
24
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+21 more
Timeline
PublishedFeb 14
KEV addedFeb 14
KEV dueMar 7
Latest updateDec 21
CISA Required Action: Apply updates per vendor instructions.

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages24 packages

▶NVDmicrosoft/windows< 10.0.14393.5717+3
▶NVDmicrosoft/windows_10_1507< 10.0.10240.19747
▶NVDmicrosoft/windows_10_1607< 10.0.14393.5717
▶NVDmicrosoft/windows_10_1809< 10.0.17763.4010
▶NVDmicrosoft/windows_10_20h2< 10.0.19042.2604

Patches

Patch: msrc.microsoft.com ↗Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

4
CVEList
Windows Common Log File System Driver Elevation of Privilege Vulnerability↗2023-02-14
▶
GHSA
GHSA-j6mx-66rf-6rxq: Windows Common Log File System Driver Elevation of Privilege Vulnerability↗2023-02-14
▶
VulnCheck
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability↗2023
▶
Project0
Project Zero RCA: CVE-2023-28252: Windows Common Log File System Driver Elevation of Privilege Vulnerability↗
▶

📋Vendor Advisories

2
Microsoft
Windows Common Log File System Driver Elevation of Privilege Vulnerability↗2023-02-14
▶
CISA
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability↗2023-02-14
▶

🕵️Threat Intelligence

5
Securelist
Windows CLFS and five exploits used by ransomware operators (Exploit #4 – CVE-2023-23376)↗2023-12-21
▶
Securelist
Windows CLFS and five exploits used by ransomware operators (Exploit #4 – CVE-2023-23376)↗2023-12-21
▶
Krebs
Microsoft Patch Tuesday, February 2023 Edition↗2023-02-14
▶
Krebs
Microsoft Patch Tuesday, February 2023 Edition↗2023-02-14
▶
Talos
Microsoft Patch Tuesday for February 2023 — Snort rules and prominent vulnerabilities↗2023-02-14
▶
CVE-2023-23376 — Heap-based Buffer Overflow | cvebase