CVE-2004-0724 [Medium] | Denial of Service in Half-Life

CVE-2004-0724 is rated Moderate Risk (46.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.62%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.74%	1.62%	+0.88%
2	2025-03-30	0.76%	0.74%	-0.02%
3	2025-03-29	—	0.76%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.74%

1.62%

+0.88%

2025-03-30

0.76%

0.74%

-0.02%

2025-03-29

—

0.76%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:N/I:N/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	10.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.0

2.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

2.9

[email protected]

Affected software / configurations for CVE-2004-0724

Vendor	Product	Version	Raw CPE
valve_software	half-life	1.1.0.4	cpe:2.3:a:valve_software:half-life:1.1.0.4::linux:::::
valve_software	half-life	1.1.0.4	cpe:2.3:a:valve_software:half-life:1.1.0.4::windows:::::
valve_software	half-life	1.1.0.8	cpe:2.3:a:valve_software:half-life:1.1.0.8:::::::*
valve_software	half-life	1.1.0.9	cpe:2.3:a:valve_software:half-life:1.1.0.9:::::::*
valve_software	half-life	1.1.1.0	cpe:2.3:a:valve_software:half-life:1.1.1.0:::::::*
valve_software	half-life_dedicated_server	3.1	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1:::::::*
valve_software	half-life_dedicated_server	3.1.0.4	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.0.4::linux:::::
valve_software	half-life_dedicated_server	3.1.0.5	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.0.5::linux:::::
valve_software	half-life_dedicated_server	3.1.0.6	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.0.6::linux:::::
valve_software	half-life_dedicated_server	3.1.0.7	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.0.7::linux:::::
valve_software	half-life_dedicated_server	3.1.0.8	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.0.8::linux:::::
valve_software	half-life_dedicated_server	3.1.0.9	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.0.9::linux:::::
valve_software	half-life_dedicated_server	3.1.1.0	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.1.0::linux:::::
valve_software	half-life_dedicated_server	3.1.1.1c1	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.1.1c1::linux:::::
valve_software	half-life_dedicated_server	3.1.1.1d	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.1.1d::linux:::::
valve_software	half-life_dedicated_server	3.1.1.1e	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.1.1e::linux:::::
valve_software	half-life_dedicated_server	3.1.1.1e	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.1.1e::win32:::::
valve_software	half-life_dedicated_server	3.1.3	cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.3:::::::*
valve_software	half-life_dedicated_server	4.1.0.4	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.0.4::win32:::::
valve_software	half-life_dedicated_server	4.1.0.6	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.0.6::win32:::::
valve_software	half-life_dedicated_server	4.1.0.7	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.0.7::win32:::::
valve_software	half-life_dedicated_server	4.1.0.8	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.0.8::win32:::::
valve_software	half-life_dedicated_server	4.1.0.9	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.0.9::win32:::::
valve_software	half-life_dedicated_server	4.1.1.0	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.1.0::win32:::::
valve_software	half-life_dedicated_server	4.1.1.1c1	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.1.1c1::win32:::::
valve_software	half-life_dedicated_server	4.1.1.1d_beta	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.1.1d_beta::win32:::::
valve_software	half-life_dedicated_server	4.1.1.1e	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.1.1e::linux:::::
valve_software	half-life_dedicated_server	4.1.1.1e	cpe:2.3:a:valve_software:half-life_dedicated_server:4.1.1.1e::win32:::::

References for CVE-2004-0724

URL	Tags
http://marc.info/?l=bugtraq&m=108966465302107&w=2
http://www.securityfocus.com/bid/10700
https://exchange.xforce.ibmcloud.com/vulnerabilities/16674

URL

CVE-2004-0724

Exploit prediction scoring system (EPSS) score for CVE-2004-0724

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0724

Weakness enumeration for CVE-2004-0724

Affected software / configurations for CVE-2004-0724

References for CVE-2004-0724