Is CVE-2002-0862 in the CISA KEV catalog?

No. CVE-2002-0862 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-0862?

CVE-2002-0862 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2002-0862?

CVE-2002-0862 has an EPSS score of 15.76% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2002-0862?

No published fix for CVE-2002-0862 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2002-0862

MEDIUMEPSS 97th pctl

6.8

CVSS v2

NVD

Description

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.

CWE-295Improper Certificate Validation

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

15.76%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Patch1

docs.microsoft.com

Third-Party Advisory1

exchange.xforce.ibmcloud.com

Mailing List3

Other references3

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.