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Vulnerabilities

Vulnerability · CVE-2002-0862

The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Wind…

Published Oct 4, 2002 · catalog updated Jun 16, 2026 · Apple windows 2000

Check this week

CVE-2002-0862 is not in CISA KEV. FIRST estimates a 15.76% chance of exploitation in the next 30 days. Check whether you run Apple windows 2000.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
15.76%
Remediation
Advisory link
Affected products
cpe microsoft/internet explorer · cpe microsoft/office · cpe microsoft/outlook express · cpe microsoft/windows 2000 · cpe microsoft/windows 98 · cpe microsoft/windows 98se

The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack for SSL sessions, as originally reported for Internet Explorer and IIS.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/internet explorerversion unspecified
  • cpe microsoft/officeversion unspecified
  • cpe microsoft/outlook expressversion unspecified
  • cpe microsoft/windows 2000version unspecified
  • cpe microsoft/windows 98version unspecified
  • cpe microsoft/windows 98seversion unspecified
  • cpe microsoft/windows meversion unspecified
  • cpe microsoft/windows nt4.0
  • cpe microsoft/windows xpversion unspecified

How to fix CVE-2002-0862

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2002-0862 is not in CISA KEV. FIRST estimates a 15.76% chance of exploitation in the next 30 days. Check whether you run Apple windows 2000.

Which versions are affected?

Compare what you have installed with microsoft/windows nt 4.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-295: Improper Certificate Validation. EPSS 15.76%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 4, 2002 · Apple Security Releases

    Detected

    The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certific

  2. Jun 16, 2026 · Apple Security Releases

    Updated

    The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certific

Sources

  • Apple Security ReleasesVendor advisoryCVE-2002-0862

    The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certific

    nvd.nist.gov
  • CVE.orgVulnerability recordCVE-2002-0862

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2002-0862

    30-day exploitation probability 15.8%

    first.org

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.