UpHeron
All vulnerabilities

Servers and applications

CVE-2000-0770

IIS 4.0 and 5.0 does not properly restrict access to certain types of files when their parent folders have less restrictive permissions, which could allow remote attackers to bypass access restrictions to some files, aka the "File Permission Canonicalization" vulnerability.

Severity
Medium 6.4
Published
20 Oct 2000
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
15% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
Microsoft IISServers and applications · cpe:a:microsoft:internet_information_services
  • Version 5.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2000-0770
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2000-0770