Threat Entry Updated 2026-01-14

CVE-2026-21265 - Windows Server 2012 R2 Plugin

Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. These original certificates are approaching expiration, and devices containing affected certificate versions must update them to maintain Secure Boot functionality and avoid compromising security by losing security fixes related to Windows boot manager or Secure Boot. The operating system’s certificate update protection mechanism relies on firmware components that might contain defects, which can cause certificate trust updates to fail or behave unpredictably. This leads to potential disruption of the Secure Boot trust chain and requires careful validation and…

PLUGIN Windows Server 2012 R2

CVE-2026-21265

MEDIUM CVSS 6.4 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20940 - Windows Server 2012 R2 Plugin

Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

PLUGIN Windows Server 2012 R2

CVE-2026-20940

HIGH CVSS 7.8 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20931 - Windows Server 2012 R2 Plugin

External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.

PLUGIN Windows Server 2012 R2

CVE-2026-20931

HIGH CVSS 8.0 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20934 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20934

HIGH CVSS 7.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20936 - Windows Server 2012 R2 Plugin

Out-of-bounds read in Windows NDIS allows an authorized attacker to disclose information with a physical attack.

PLUGIN Windows Server 2012 R2

CVE-2026-20936

MEDIUM CVSS 4.3 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20929 - Windows Server 2012 R2 Plugin

Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20929

HIGH CVSS 7.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20926 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20926

HIGH CVSS 7.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20925 - Windows Server 2012 R2 Plugin

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20925

MEDIUM CVSS 6.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-16

CVE-2026-20927 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20927

MEDIUM CVSS 5.3 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20922 - Windows Server 2012 R2 Plugin

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

PLUGIN Windows Server 2012 R2

CVE-2026-20922

HIGH CVSS 7.8 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20921 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20921

HIGH CVSS 7.5 2026-01-13

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2026-01-15

CVE-2026-20919 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20919

HIGH CVSS 7.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20875 - Windows Server 2012 R2 Plugin

Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20875

HIGH CVSS 7.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-02-10

CVE-2026-20868 - Windows Server 2012 R2 Plugin

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20868

HIGH CVSS 8.8 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20869 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Manager (LSM) allows an authorized attacker to elevate privileges locally.

PLUGIN Windows Server 2012 R2

CVE-2026-20869

HIGH CVSS 7.0 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20872 - Windows Server 2012 R2 Plugin

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20872

MEDIUM CVSS 6.5 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20856 - Windows Server 2012 R2 Plugin

Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20856

HIGH CVSS 8.1 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20860 - Windows Server 2012 R2 Plugin

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

PLUGIN Windows Server 2012 R2

CVE-2026-20860

HIGH CVSS 7.8 2026-01-13

Risk Score

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Threat Entry Updated 2026-01-15

CVE-2026-20849 - Windows Server 2012 R2 Plugin

Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20849

HIGH CVSS 7.5 2026-01-13

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2026-01-15

CVE-2026-20848 - Windows Server 2012 R2 Plugin

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

PLUGIN Windows Server 2012 R2

CVE-2026-20848

HIGH CVSS 7.5 2026-01-13

Risk Score

Open Full Technical Breakdown