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CVE-2003-1432

33
FAUCET Score

CVE-2003-1432 is a critical vulnerability affecting Epic Games Unreal Engine versions 226f through 436, including Unreal Tournament 2003. It allows remote attackers to cause a denial of service (CPU consumption or crash) and potentially execute arbitrary code by sending specially crafted packets with negative size values or manipulating package files. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network without authentication, leading to complete compromise of confidentiality, integrity, and availability. While there are no known active exploits or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
226fCPE matchmatch criteria
cpe:2.3:a:epic_games:unreal_engine:226f:*:*:*:*:*:*:*
433CPE matchmatch criteria
cpe:2.3:a:epic_games:unreal_engine:433:*:*:*:*:*:*:*
436CPE matchmatch criteria
cpe:2.3:a:epic_games:unreal_engine:436:*:*:*:*:*:*:*
2199_linuxCPE matchmatch criteria
cpe:2.3:a:epic_games:unreal_tournament_2003:2199_linux:*:*:*:*:*:*:*
2199_win32CPE matchmatch criteria
cpe:2.3:a:epic_games:unreal_tournament_2003:2199_win32:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
7.54%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0754 is in the 90th percentile among its peer group of 51,466 CVEs.

Social Chatter

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

archives.neohapsis.com / archives/bugtraq/2003-02/0063.html
archives.neohapsis.com / archives/bugtraq/2003-02/0142.html
archives.neohapsis.com / archives/bugtraq/2003-05/0142.html
exchange.xforce.ibmcloud.com / vulnerabilities/11302
exchange.xforce.ibmcloud.com / vulnerabilities/11305
exchange.xforce.ibmcloud.com / vulnerabilities/12012
securityfocus.com / bid/6770
Exploit
securityfocus.com / bid/6772
Exploit