Vulnerability record · CVE-2004-1395 · published 31 December 2004
CVE-2004-1395: Monolith productions contract jack vulnerability
MMonolith Productions · Contract Jack
The Lithtech engine, as used in (1) Contract Jack 1.1 and earlier, (2) No one lives forever 2 1.3 and earlier, (3) Tron 2.0 1.042 and earlier, (4) F.E.A.R. (First Encounter Assault and Recon), and possibly other games, allows remote attackers to cause a denial of service (connection refused) via a UDP packet that causes recvfrom to generate a return code that causes the listening loop to exit, as demonstrated using zero byte packets or packets between 8193 and 12280 bytes, which result in conditions that are not "Operation would block."
Description
The Lithtech engine, as used in (1) Contract Jack 1.1 and earlier, (2) No one lives forever 2 1.3 and earlier, (3) Tron 2.0 1.042 and earlier, (4) F.E.A.R. (First Encounter Assault and Recon), and possibly other games, allows remote attackers to cause a denial of service (connection refused) via a UDP packet that causes recvfrom to generate a return code that causes the listening loop to exit, as demonstrated using zero byte packets or packets between 8193 and 12280 bytes, which result in conditions that are not "Operation would block."
AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected products
3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
Track CVE-2004-1395 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2004-1395), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.
