CVE-2023-35317 — Deserialization of Untrusted Data in Microsoft Windows Server 2012

CWE-502 — Deserialization of Untrusted Data5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 67.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Microsoft Windows Server 2012Microsoft Windows Server 2012 R2Microsoft Windows Server 2016+7 more
Timeline
PublishedJul 11
Latest updateOct 27

Description

Windows Server Update Service (WSUS) 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 Packages11 packages

▶CVEListV5microsoft/windows_server_20126.2.9200.0 — 6.2.9200.24374
▶CVEListV5microsoft/windows_server_201610.0.14393.0 — 10.0.14393.6085
▶CVEListV5microsoft/windows_server_201910.0.17763.0 — 10.0.17763.4645
▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.1850
▶CVEListV5microsoft/windows_server_2012_r26.3.9600.0 — 6.3.9600.21063

Patches

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

🔴Vulnerability Details

1
GHSA
GHSA-pcx7-hvg4-wg56: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability↗2023-07-11
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🔍Detection Rules

1
Suricata
ET WEB_SERVER Microsoft Windows Server Update Services (WSUS) Elevation of Privilege via Insecure Deserialization (CVE-2023-35317)↗2025-10-27
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📋Vendor Advisories

1
Microsoft
Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability↗2023-07-11
▶

🕵️Threat Intelligence

1
Tenable
Microsoft’s October 2025 Patch Tuesday Addresses 167 CVEs (CVE-2025-24990, CVE-2025-59230)↗2025-10-14
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