CVE-2009-3675

Windows 2000 vulnerability

CVSS

6.8

EPSS

24.7%

EPSS pct

98th

Exploited

No known

LSASS.exe in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 allows remote authenticated users to cause a denial of service (CPU consumption) via a malformed ISAKMP request over IPsec, aka "Local Security Authority Subsystem Service Resource Exhaustion Vulnerability."

Affected vendor

Microsoft

Affected product

Windows 2000

CVSS vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Weakness type (CWE)

CWE-399

Published

2009-12-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring single-factor authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 24.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2009-3675

Confirm whether Microsoft Windows 2000 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-3675.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-3675

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-3675 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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