VULNERABILITY INTELLIGENCE
CVE-2002-1256
CVSS score5 MEDIUM
EPSS probability5.41%
CISA KEVNot currently listed
Published2002-12-23
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N
Description
The SMB signing capability in the Server Message Block (SMB) protocol in Microsoft Windows 2000 and Windows XP allows attackers to disable the digital signing settings in an SMB session to force the data to be sent unsigned, then inject data into the session without detection, e.g. by modifying group policy information sent from a domain controller.