Evidence used
- CISA confirms exploitation in the wild.
- EPSS is 89.44% for the current model date.
BlackTreeCVE IntelligenceMicrosoft · Windows
CISA confirms exploitation in the wild and lists 2022-05-03 as the remediation due date.
Alpine findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Alpine v3.23v3.23 · community | containerd | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.3.3-r0 | Alpine Security Database ↗Source updated 22 Oct 2026 |
| Alpine v3.22v3.22 · community | containerd | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.3.3-r0 | Alpine Security Database ↗Source updated 22 Oct 2026 |
| Alpine v3.21v3.21 · community | containerd | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 1.3.3-r0 | Alpine Security Database ↗Source updated 22 Oct 2026 |
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
The vendor explicitly identifies these products as affected by this CVE.
CISA confirms exploitation in the wild and lists 2022-05-03 as the remediation due date.
Patch availableMicrosoft Windows CryptoAPI (Crypt32.dll) contains a spoofing vulnerability in the way it 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. A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software. The vulnerability is also known under the moniker of CurveBall.
Microsoft Windows CryptoAPI (Crypt32.dll) contains a spoofing vulnerability in the way it 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. A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software. The vulnerability is also known under the moniker of CurveBall.
The product does not validate, or incorrectly validates, a certificate.
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
Microsoft Windows CryptoAPI (Crypt32.dll) contains a spoofing vulnerability in the way it 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. A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software. The vulnerability is also known under the moniker of CurveBall.
The product does not validate, or incorrectly validates, a certificate.
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2021-11-03.
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
CWE-295: Improper Certificate Validation. The product does not validate, or incorrectly validates, a certificate.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 14 Jan 2020 · Last source change 21 Oct 2025, 23:35 UTC · CWE-295 · Improper Certificate Validation
Core structured fields are present and their contributing authorities are shown above.