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."
CVE-2004-1395
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 88.8%
- KEV
- Not listed
Published
December 31, 2004
Last Modified
June 16, 2026
References (16)
- cve@mitrehttp://aluigi.altervista.org/adv/lithsock-adv.txt
- cve@mitrehttp://lists.grok.org.uk/pipermail/full-disclosure/2004-December/029932.html
- cve@mitrehttp://lists.grok.org.uk/pipermail/full-disclosure/2005-October/038095.html
- cve@mitrehttp://marc.info/?l=bugtraq&m=110297515500671&w=2
- cve@mitrehttp://secunia.com/advisories/13446/
- cve@mitrehttp://secunia.com/advisories/17317
- cve@mitrehttp://www.securityfocus.com/bid/11902
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/18456
- af854a3a-2127-422b-91ae-364da2661108http://aluigi.altervista.org/adv/lithsock-adv.txt
- af854a3a-2127-422b-91ae-364da2661108http://lists.grok.org.uk/pipermail/full-disclosure/2004-December/029932.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.grok.org.uk/pipermail/full-disclosure/2005-October/038095.html
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=110297515500671&w=2
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/13446/
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/17317
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/11902
Data Freshness Timeline
(refreshed 4× in last 7d / 24× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
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- 2026-07-08 15:09 UTCEPSS rescore
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- 2026-06-21 01:56 UTCEPSS rescore
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
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- 2026-06-06 13:44 UTCEPSS rescore
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- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 15:06 UTCEG score recompute
- 2026-05-31 15:06 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-683✓ verifiedFirst seen Dec 13, 2004
Lithtech Engine (new protocol) - Socket Unreacheable Denial of Service
Open source ↗
Frequently asked(4)
What is CVE-2004-1395?
When was CVE-2004-1395 disclosed?
Is CVE-2004-1395 actively exploited?
How do I remediate CVE-2004-1395?
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