CVE-2011-3012: The ioQuake3 engine, as used in World of Padman 1.2 and earlier, Tremulous 1.1.0, and ioUrbanTerror 2007-12-20

Q: How do I fix CVE-2011-3012?

ioquake3 engine: mitigate or apply the listed mitigation; tremulous: downgrade or apply the listed mitigation; iourbanterror: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2011-3012 being exploited?

CVE-2011-3012 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-3012 affect?

CVE-2011-3012 affects ioquake3 engine, tremulous, iourbanterror. Severity is high (CVSS 10.0). The ioQuake3 engine, as used in World of Padman 1.2 and earlier, Tremulous 1.1.0, and ioUrbanTerror 2007-12-20, does not check for dangerous file extensions before writing to the quake3 directory, which allows remote attackers to execute ar

Q: How urgent is CVE-2011-3012?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

This week

HIGH 10.0MITIGATEDOWNGRADEDOWNGRADE

CVE-2011-3012 is a high-severity flaw (CVSS 10.0) affecting ioquake3 engine, tremulous, iourbanterror. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ioQuake3 engine, as used in World of Padman 1.2 and earlier, Tremulous 1.1.0, and ioUrbanTerror 2007-12-20, does not check for dangerous file extensions before writing to the quake3 directory, which allows remote attackers to execute arbitrary code via a crafted third-party addon that creates a Trojan horse DLL file, a different vulnerability than CVE-2011-2764.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	8.0% (top 5%)
CISA exploited list	No
Weakness	CWE-20
Published	2011-08-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ioquake3 · tremulous · urbanterror · worldofpadman

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2011-08-09 20:55 UTCPublished CVE record published
2026-06-16 23:32 UTCUpdated Record last modified

ioquake3 ioquake3 engine MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ioquake3-engine || rpm -q ioquake3-engine || ioquake3-engine --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

tremulous tremulous DOWNGRADE

Affected: 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.0

1. Check installed version

apt-cache policy tremulous || rpm -q tremulous || tremulous --version

2. No fixed release: DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison tremulous sudo apt install tremulous=<VERSION_BEFORE_1.1.0> sudo apt-mark hold tremulous

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tremulous sudo dnf downgrade tremulous-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add tremulous

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

urbanterror iourbanterror DOWNGRADE

Affected: 2007-12-20

Fixed in: no fixed release known

Safe to downgrade to: a release before 2007-12-20

1. Check installed version

apt-cache policy iourbanterror || rpm -q iourbanterror || iourbanterror --version

2. No fixed release: DOWNGRADE to a release before 2007-12-20 (Debian / Ubuntu)

apt-cache madison iourbanterror sudo apt install iourbanterror=<VERSION_BEFORE_2007-12-20> sudo apt-mark hold iourbanterror

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list iourbanterror sudo dnf downgrade iourbanterror-<VERSION_BEFORE_2007-12-20> sudo dnf versionlock add iourbanterror

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

worldofpadman world of padman UPGRADE

Affected: <= 1.2

Fixed in: newer than 1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy world-of-padman || rpm -q world-of-padman || world-of-padman --version

2. UPGRADE to newer than 1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade world-of-padman

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade world-of-padman

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-3012?

ioquake3 engine: mitigate or apply the listed mitigation; tremulous: downgrade or apply the listed mitigation; iourbanterror: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-3012 being exploited?

CVE-2011-3012 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-3012 affect?

CVE-2011-3012 affects ioquake3 engine, tremulous, iourbanterror. Severity is high (CVSS 10.0). The ioQuake3 engine, as used in World of Padman 1.2 and earlier, Tremulous 1.1.0, and ioUrbanTerror 2007-12-20, does not check for dangerous file extensions before writing to the quake3 directory, which allows remote attackers to execute ar

How urgent is CVE-2011-3012?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2012-3345 MEDIUM 5.6 UPGRADE ioquake3 before r2253 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/ioq3.pi
CVE-2011-2764 HIGH 10.0 UPGRADE MITIGATE The FS_CheckFilenameIsNotExecutable function in qcommon/files.c in the ioQuake3 engine 1.36 and earlier, as us
CVE-2011-1412 HIGH 7.5 MITIGATE DOWNGRADE sys/sys_unix.c in the ioQuake3 engine on Unix and Linux, as used in World of Padman 1.5.x before 1.5.1.1 and O
CVE-2010-5077 HIGH 7.8 UPGRADE MITIGATE server/sv_main.c in Quake3 Arena, as used in ioquake3 before r1762, OpenArena, Tremulous, and other products,

References

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