A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attac
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- Fix
- Fixed in 1.12.16, 1.13.7
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Windows CryptoAPI (Crypt32.dll), the Microsoft component that validates Elliptic Curve Cryptography certificates, is affected. An attacker could use a forged code-signing certificate to make a malicious executable appear to come from a trusted source.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source, aka 'Windows CryptoAPI Spoofing Vulnerability'.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Microsoft Windows
10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems
- Microsoft Windows Server
version 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation)
- Microsoft Windows 10 Version 1903 for 32-bit Systems
Version range not reported
- Microsoft Windows 10 Version 1903 for x64-based Systems
Version range not reported
- Microsoft Windows 10 Version 1903 for ARM64-based Systems
Version range not reported
- Microsoft Windows Server, version 1903 (Server Core installation)
Version range not reported
- Microsoft Windows 10 Version 1909 for 32-bit Systems
Version range not reported
- Microsoft Windows 10 Version 1909 for x64-based Systems
Version range not reported
- Microsoft Windows Server, version 1909 (Server Core installation)
Version range not reported
- Microsoft Windows 10 Version 1909 for ARM64-based Systems
Version range not reported
- stdlibGo
fixed in 1.12.16; From 1.13.0-0 · fixed in 1.13.7