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5.0

StackDefender 2.0 can crash system with bad address

CVE-2004-0766 · published 22 years ago
Summary

The StackDefender 2.0 security tool may stop working and cause the computer to freeze or restart if it receives an incorrect memory address in certain operations. This can lead to a denial of service, meaning the system becomes unavailable. Update or replace the product with a version that fixes the handling of these memory requests.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ngsec stackdefender 2.0
cpe:2.3:a:ngsec:stackdefender:2.0:*:*:*:*:*:*:*
Original advisory text
NGSEC StackDefender 2.0 allows attackers to cause a denial of service (system crash) via an invalid address for the BaseAddress parameter to the hooks for the (1) ZwAllocateVirtualMemory or (2) ZwP...
NGSEC StackDefender 2.0 allows attackers to cause a denial of service (system crash) via an invalid address for the BaseAddress parameter to the hooks for the (1) ZwAllocateVirtualMemory or (2) ZwProtectVirtualMemory functions.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
1% chance of attack within 30 days
Timeline
Published18 Aug 2004
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2004-0766 · NVD
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