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Vulnerability · Published Jan 10, 2023 · Assigned by microsoft

CVE-2023-21556Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability

High 8.1

In plain English

A high-severity security flaw in Windows 10 Version 1507 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)1.5%top 25.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.3887
Microsoft Windows 10 Version 1809 10.0.0 – before 10.0.17763.3887
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.3887
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.3887
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.1487
Microsoft Windows 10 Version 20H2 10.0.0 – before 10.0.19042.2486
Microsoft Windows 11 version 21H2 10.0.0 – before 10.0.22000.1455
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.2486
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.1105
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.2486
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.19685
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.5648
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.5648
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.5648
Microsoft Windows 7 6.1.0 – before 6.1.7601.26321
Microsoft Windows 7 Service Pack 1 6.1.0 – before 6.1.7601.26321
Microsoft Windows 8.1 6.3.0 – before 6.3.9600.20778
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.21872
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before 6.0.6003.21872
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.21872
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before 6.1.7601.26321
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before 6.1.7601.26321
Microsoft Windows Server 2012 6.2.9200.0 – before 6.2.9200.24075
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before 6.2.9200.24075
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.20778
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.20778

Weakness: CWE-191 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References