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CVE-2013-3900

CWE-347

High

77.4

RPS

Description

Why is Microsoft republishing a CVE from 2013? We are republishing CVE-2013-3900 in the Security Update Guide to update the Security Updates table and to inform customers that the EnableCertPaddingCheck is available in all currently supported versions of Windows 10 and Windows 11. While the format is different from the original CVE published in 2013, except for clarifications about how to configure the EnableCertPaddingCheck registry value, the information herein remains unchanged from the original text published on December 10, 2013, Microsoft does not plan to enforce the stricter verification behavior as a default functionality on supported releases of Microsoft Windows. This behavior remains available as an opt-in feature via reg key setting, and is available on supported editions of Windows released since December 10, 2013. This includes all currently supported versions of Windows 10 and Windows 11. The supporting code for this reg key was incorporated at the time of release for Windows 10 and Windows 11, so no security update is required; however, the reg key must be set. See the Security Updates table for the list of affected software. Vulnerability Description A remote code…

Source: NVD

Signals

CVSS
5.5
Medium · v3.1
EPSS
44.64%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Jan 2022
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-347
Published
11 Dec 2013
Last modified 7 Oct 2026

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 8 Oct 2026, 05:16 UK time

CVE-2013-3900 · RPS 77.4 · DevSecure Intelligence