CVE-2000-0453: XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet
Summary
XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000.
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:31:02.718Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.