THREATPORT/VULNERABILITY/CVE-2005-1649
MEDIUM SEVERITY

CVE-2005-1649

Windows 2003 Server vulnerability

CVSS
5.0
EPSS
21.8%
EPSS pct
97th
Exploited
No known
The IPv6 support in Windows XP SP2, 2003 Server SP1, and Longhorn, with Windows Firewall turned off, allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the SYN flag set and the same destination and source address and port, a variant of CVE-2005-0688 and a reoccurrence of the "Land" vulnerability (CVE-1999-0016).
Affected vendor
Microsoft
Affected product
Windows 2003 Server
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Published
2005-05-18

Risk analysis

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

Its EPSS score of 21.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2005-1649

  • 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-2005-1649.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2005-1649

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2005-1649 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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