THREATPORT/VULNERABILITY/CVE-2007-2228
HIGH SEVERITY

CVE-2007-2228

Windows 2000 vulnerability

CVSS
7.8
EPSS
43.3%
EPSS pct
99th
Exploited
No known
rpcrt4.dll (aka the RPC runtime library) in Microsoft Windows XP SP2, XP Professional x64 Edition, Server 2003 SP1 and SP2, Server 2003 x64 Edition and x64 Edition SP2, and Vista and Vista x64 Edition allows remote attackers to cause a denial of service (RPCSS service stop and system restart) via an RPC request that uses NTLMSSP PACKET authentication with a zero-valued verification trailer signature, which triggers an invalid dereference. NOTE: this also affects Windows 2000 SP4, although the impact is an information leak.
Affected vendor
Microsoft
Affected product
Windows 2000
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Published
2007-10-09

Risk analysis

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

Its EPSS score of 43.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2007-2228

  • Confirm whether Microsoft Windows 2000 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2007-2228.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-2228

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-2228 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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