Is CVE-2010-2566 in the CISA KEV catalog?

No. CVE-2010-2566 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2010-2566?

CVE-2010-2566 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2010-2566?

CVE-2010-2566 has an EPSS score of 15.35% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2010-2566

HIGHEPSS 96th pctl

9.3

CVSS v2

NVD

Description

The Secure Channel (aka SChannel) security package in Microsoft Windows XP SP2 and SP3, and Windows Server 2003 SP2, does not properly validate certificate request messages from TLS and SSL servers, which allows remote servers to execute arbitrary code via a crafted SSL response, aka "SChannel Malformed Certificate Request Remote Code Execution Vulnerability."

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

15.35%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

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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 2026-04-29.