--- title: "CVE-2013-3900: WinVerifyTrust Signature Validation… | CubePath" 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…" language: en source: https://cubepath.com/security/cve/CVE-2013-3900 --- # CVE-2013-3900: WinVerifyTrust Signature Validation… | CubePath ## 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 execution vulnerability exists in the way that the WinVerifyTrust function handles Windows Authenticode signature verification for portable executable (PE) files. An anonymous attacker could exploit the vulnerability by modifying an existing signed executable file to leverage unverified portions of the file in such a way as to add malicious code to the file without invalidating the signature. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of this vulnerability requires that a user or application run or install a specially crafted, signed PE file. An attacker could modify an... See more at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2013-3900 Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2013-3900) ## Key data ### CVSS 3.1 Medium 5.5 Score published by microsoft in the CVE record. CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------------- | | Attack vector | Local | The attacker needs local access to the system, or to trick a user into running something. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | Required | A user has to do something first, such as opening a file or following a link. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | None | No effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | None | No effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.44647 (44.6% probability) Percentile 98.8% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Microsoft WinVerifyTrust function Remote Code Execution Added to the catalog Jan 10, 2022 Federal due date Jul 10, 2022 ### CISA assessment as of Feb 10, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable no Technical impact partial ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-347](https://cwe.mitre.org/data/definitions/347.html) Improper Verification of Cryptographic Signature ## Affected products Products listed in the CVE record, as the CNA published them. - Microsoft Windows 10 Version 1809 - affected: N/A - Microsoft Windows 10 Version 1809 - affected: N/A - Microsoft Windows Server 2019 - affected: N/A - Microsoft Windows Server 2019 (Server Core installation) - affected: N/A - Microsoft Windows Server 2022 - affected: N/A - Microsoft Windows 11 version 21H2 - affected: N/A - Microsoft Windows 10 Version 21H2 - affected: N/A - Microsoft Windows 11 version 22H2 - affected: N/A - Microsoft Windows 10 Version 22H2 - affected: N/A - Microsoft Windows Server 2025 (Server Core installation) - affected: N/A - Microsoft Windows 11 version 22H3 - affected: N/A - Microsoft Windows 11 Version 23H2 - affected: N/A - Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) - affected: N/A - Microsoft Windows 11 Version 24H2 - affected: N/A - Microsoft Windows Server 2025 - affected: N/A - Microsoft Windows 10 Version 1507 - affected: N/A - Microsoft Windows 10 Version 1607 - affected: N/A - Microsoft Windows Server 2016 - affected: N/A - Microsoft Windows Server 2016 (Server Core installation) - affected: N/A - Microsoft Windows Server 2008 Service Pack 2 - affected: N/A - Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) - affected: N/A - Microsoft Windows Server 2008 Service Pack 2 - affected: N/A - Microsoft Windows Server 2008 R2 Service Pack 1 - affected: N/A - Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) - affected: N/A - Microsoft Windows Server 2012 - affected: N/A - Microsoft Windows Server 2012 (Server Core installation) - affected: N/A - Microsoft Windows Server 2012 R2 - affected: N/A - Microsoft Windows Server 2012 R2 (Server Core installation) - affected: N/A ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [WinVerifyTrust Signature Validation Vulnerability](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2013-3900) (msrc.microsoft.com) vendor-advisory - [MS13-098](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-098) (docs.microsoft.com) vendor-advisory - [blogs.technet.com/b/srd/archive/2013/12/10/ms13-098-update-…](http://blogs.technet.com/b/srd/archive/2013/12/10/ms13-098-update-to-enhance-the-security-of-authenticode.aspx) ## Timeline 1. ID reserved Jun 3, 2013 2. Record published Dec 11, 2013 3. Added to CISA KEV Jan 10, 2022 4. Record last updated Oct 8, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:33 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)