VULNERABILITY INTELLIGENCE

CVE-2011-5279

CVSS score5 MEDIUM
EPSS probability19.59%
CISA KEVNot currently listed
Published2014-04-23
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N

Description

CRLF injection vulnerability in the CGI implementation in Microsoft Internet Information Services (IIS) 4.x and 5.x on Windows NT and Windows 2000 allows remote attackers to modify arbitrary uppercase environment variables via a \n (newline) character in an HTTP header.

Primary references