CVE-2011-2764

Exp

The FS_CheckFilenameIsNotExecutable function in qcommon/files.c in the ioQuake3 engine 1.36 and earlier, as used in World of Padman, Smokin' Guns, OpenArena, Tremulous, and ioUrbanTerror, does not properly determine dangerous file extensions, which allows remote attackers to execute arbitrary code via a crafted third-party addon that creates a Trojan horse DLL file.

Published: 2011-08-04 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2764 is rated High Exploit Risk (88/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.78%, 90th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.44% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-2764

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-2764

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-03 4.34% 5.78% +1.44%
2 2025-10-15 5.78% 4.34% -1.44%
3 2025-03-30 — 5.78% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2764

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2011-2764

OS Trackers for CVE-2011-2764

vendor priority summary link
debian not yet assigned CVE-2011-2764 not yet assigned priority: Debian including 2 source packages (ioquake3, openarena), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2011-2764
gentoo normal CVE-2011-2764: 1 GLSA(s) (201706-23), 1 atom(s) (games-fps/urbanterror); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2764
ubuntu medium CVE-2011-2764 medium priority: Ubuntu including 2 source packages (ioquake3, openarena), 68 status rows across 34 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hardy, hirsute, impish, jammy, kinetic, lucid, lunar, mantic, maverick, natty, noble, oneiric, oracular, plucky, precise, quantal, questing, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 34, not-affected 21 (5 distinct statuses). https://ubuntu.com/security/CVE-2011-2764

Affected software / configurations for CVE-2011-2764

Vendor Product Version Raw CPE
ioquake3 ioquake3_engine <= 1.36 cpe:2.3:a:ioquake3:ioquake3_engine:*:*:*:*:*:*:*:*
ioquake3 ioquake3_engine 1.36 cpe:2.3:a:ioquake3:ioquake3_engine:1.36:rc1:*:*:*:*:*:*
openarena openarena — cpe:2.3:a:openarena:openarena:*:*:*:*:*:*:*:*
smokin-guns smokin\'_guns — cpe:2.3:a:smokin-guns:smokin\'_guns:*:*:*:*:*:*:*:*
tremulous tremulous — cpe:2.3:a:tremulous:tremulous:*:*:*:*:*:*:*:*
urbanterror iourbanterror — cpe:2.3:a:urbanterror:iourbanterror:*:*:*:*:*:*:*:*
worldofpadman world_of_padman — cpe:2.3:a:worldofpadman:world_of_padman:*:*:*:*:*:*:*:*

References for CVE-2011-2764

cvelogic Threat Intelligence