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CVE-2003-1325

29
FAUCET Score

CVE-2003-1325 describes a denial-of-service vulnerability in Valve Software Half-Life CSTRIKE Dedicated Server versions 1.1.1.0 and earlier. An authenticated remote attacker can exploit a flaw in the SV_CheckForDuplicateNames function by sending a specially crafted connection string to UDP port 27015, leading to an infinite loop and daemon hang. This vulnerability has a CVSS score of 5.2, indicating a medium severity, and allows for a complete denial of service with an adjacent network attack vector and medium attack complexity. While not listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB, and the CVE has garnered significant community discussion with 10 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.1.0CPE matchmatch criteria
cpe:2.3:a:valve_software:half-life_cstrike_dedicated_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.2MEDIUM

AV:A/AC:M/Au:S/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
4.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.55%
Probability of exploitation in next 30 days
EPSS Percentile
83.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-1483 · Feb 11, 2006
This CVE's current EPSS score of 0.0255 is in the 99th percentile among its peer group of 74 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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/csdos.txt
packetstormsecurity.org / 0304-exploits/hl-headnut.c
Exploit