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CVE-2013-3900

86
FAUCET Score

CVE-2013-3900 is a remote code execution vulnerability in Microsoft Windows' WinVerifyTrust function, affecting Authenticode signature verification for portable executable (PE) files. An attacker can modify a signed PE file to embed malicious code without invalidating its signature, potentially gaining full system control. With a CVSS score of 8.8 (HIGH), it requires user interaction to run a specially crafted file, but its impact includes complete system compromise. This vulnerability is actively exploited, notably in the 3CX supply chain attack, and despite its age, Microsoft has re-published guidance on an opt-in fix, highlighting its continued relevance and high community attention.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
44.65%
Probability of exploitation in next 30 days
EPSS Percentile
98.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Jan 10, 2022
This CVE's current EPSS score of 0.4465 is in the 99th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

microsoftpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

microsoft2022-Jan/CVE-2013-3900Moderate

WinVerifyTrust Signature Validation Vulnerability

Jan 11, 2022

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
blogs.technet.com / b/srd/archive/2013/12/10/ms13-098-update-to-enhance-the-security-of-authenticode.aspx
Broken Link
docs.microsoft.com / en-us/security-updates/securitybulletins/2013/ms13-098
Vendor Advisory
msrc.microsoft.com / update-guide/vulnerability/CVE-2013-3900
PatchVendor Advisory