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CVE-2003-1143

29
FAUCET Score

CVE-2003-1143 describes a denial-of-service vulnerability affecting Croteam Serious Sam demo test 2 2.1a, Serious Sam: The First Encounter 1.05, and Serious Sam: The Second Encounter 1.05. Remote attackers can exploit this by sending a specially crafted TCP packet with an invalid first parameter, leading to a crash or freeze of the game server. With a CVSS score of 7.5, this vulnerability is considered high severity, requiring no authentication or complex attack vectors, and potentially impacting confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, public exploit code exists in ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
test_2_2.1_aCPE matchmatch criteria
cpe:2.3:a:croteam:serioussam:test_2_2.1_a:*:*:*:*:*:*:*
the_first_encounter_1.0.5CPE matchmatch criteria
cpe:2.3:a:croteam:serioussam:the_first_encounter_1.0.5:*:*:*:*:*:*:*
the_second_encounter_1.0.5CPE matchmatch criteria
cpe:2.3:a:croteam:serioussam:the_second_encounter_1.0.5:*:*:*:*:*:*:*
the_second_encounter_demoCPE matchmatch criteria
cpe:2.3:a:croteam:serioussam:the_second_encounter_demo:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.78%
Probability of exploitation in next 30 days
EPSS Percentile
84.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-23314 · Oct 30, 2003
This CVE's current EPSS score of 0.0278 is in the 73rd percentile among its peer group of 51,466 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

aluigi.altervista.org / adv/ssboom-adv.txt
ExploitPatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/13618
securityfocus.com / archive/1/342957
ExploitPatchVendor Advisory
securityfocus.com / bid/8936
ExploitPatchVendor Advisory