CVE-2010-2566

Windows 2003 Server vulnerability

CVSS

9.3

EPSS

15.3%

EPSS pct

96th

Exploited

No known

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."

Affected vendor

Microsoft

Affected product

Windows 2003 Server

CVSS vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2010-08-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 15.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2010-2566

Confirm whether Microsoft Windows 2003 Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2010-2566.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2010-2566

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