$ cve CVE-2004-1395 JSON

CVE-2004-1395 EXPLOIT

5.0

MEDIUM · CVSS 2.0 · EPSS 3.8% (pctl 90)

Patch early

A public exploit exists.

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."

Scoring

CVSS	5.0 (MEDIUM, v2.0)
Vector	AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS	3.82% — more likely to be exploited than 90% of all CVEs
On CISA KEV	no
Public exploit	yes
Published	2004-12-31
Last modified	2026-06-16

Affected (3)

Vendor	Product
monolith productions	contract jack
monolith productions	no one lives forever 2
monolith productions	tron

Public exploits

Source	Title	Date
exploit-db	Lithtech Engine (new protocol) - Socket Unreacheable Denial of Service	2004-12-13

References

→ the Explorer · watch your stack · NVD