CVE-2012-2549

Windows Server 2008 vulnerability

CVSS

5.8

EPSS

10.0%

EPSS pct

95th

Exploited

No known

The IP-HTTPS server in Windows Server 2008 R2 and R2 SP1 and Server 2012 does not properly validate certificates, which allows remote attackers to bypass intended access restrictions via a revoked certificate, aka "Revoked Certificate Bypass Vulnerability."

Affected vendor

Microsoft

Affected product

Windows Server 2008

CVSS vector

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

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2012-12-12

Risk analysis

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

Its EPSS score of 10.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2012-2549

Confirm whether Microsoft Windows Server 2008 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2012-2549.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-2549

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2012-2549 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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