All vulnerabilities

Servers and applications

CVE-2011-4963

nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain "$index_allocation" sequences in a request.

Severity
Medium 5.0
Published
26 Jul 2012
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.2.1
Exploit chance
6% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
nginxServers and applications · cpe:a:f5:nginx
  • From 0.7.52 before 1.2.1
  • Version 1.3.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4963
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4963