// For flags

CVE-1999-0975

Microsoft Windows 95/98/NT 4.0 - Help File Backdoor

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The Windows help system can allow a local user to execute commands as another user by editing a table of contents metafile with a .CNT extension and modifying the topic action to include the commands to be executed when the .hlp file is accessed.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 1999-12-10 CVE Published
  • 1999-12-10 First Exploit
  • 1999-12-14 CVE Reserved
  • 2024-08-01 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
CAPEC
References (2)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Windows 95
Search vendor "Microsoft" for product "Windows 95"
*-
Affected
Microsoft
Search vendor "Microsoft"
Windows 98
Search vendor "Microsoft" for product "Windows 98"
*gold
Affected
Microsoft
Search vendor "Microsoft"
Windows Nt
Search vendor "Microsoft" for product "Windows Nt"
4.0
Search vendor "Microsoft" for product "Windows Nt" and version "4.0"
-
Affected