CVE-2014-0226: Race condition in the mod_status module in the Apache HTTP Server before 2.4.10 allows remote attackers to cau

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MEDIUM 6.8WATCHLISTUPGRADEMITIGATEDOWNGRADE

CVE-2014-0226 is a medium-severity flaw (CVSS 6.8) affecting http server, debian linux, jboss enterprise application platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Race condition in the mod_status module in the Apache HTTP Server before 2.4.10 allows remote attackers to cause a denial of service (heap-based buffer overflow), or possibly obtain sensitive credential information or execute arbitrary code, via a crafted request that triggers improper scoreboard handling within the status_handler function in modules/generators/mod_status.c and the lua_ap_scoreboard_worker function in modules/lua/lua_request.c.

Why this priority

EPSS top 1%: very likely to be exploited
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	85.7% (top 1%)
CISA exploited list	No
Weakness	CWE-362
Published	2014-07-20
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: apache · debian · oracle · redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-07-20 11:12 UTCPublished CVE record published
2026-06-17 00:02 UTCUpdated Record last modified

apache http server UPGRADE

Affected: >= 2.2.0 and < 2.2.29 · >= 2.4.1 and < 2.4.10

Fixed in: 2.2.29, 2.4.10

Safe to downgrade to: a release before 2.2.0

1. Check installed version

apt-cache policy http-server || rpm -q http-server || http-server --version

2. UPGRADE to 2.2.29 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade http-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade http-server

Note

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

3. If no update is available yet, DOWNGRADE to a release before 2.2.0 (Debian / Ubuntu)

apt-cache madison http-server sudo apt install http-server=<VERSION_BEFORE_2.2.0> sudo apt-mark hold http-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list http-server sudo dnf downgrade http-server-<VERSION_BEFORE_2.2.0> sudo dnf versionlock add http-server

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.

debian debian linux MITIGATE

Affected: 7.0 · 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat jboss enterprise application platform DOWNGRADE

Affected: 6.0.0 · 6.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0.0

1. Check installed version

apt-cache policy jboss-enterprise-application-platform || rpm -q jboss-enterprise-application-platform || jboss-enterprise-application-platform --version

2. No fixed release: DOWNGRADE to a release before 6.0.0 (Debian / Ubuntu)

apt-cache madison jboss-enterprise-application-platform sudo apt install jboss-enterprise-application-platform=<VERSION_BEFORE_6.0.0> sudo apt-mark hold jboss-enterprise-application-platform

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

dnf --showduplicates list jboss-enterprise-application-platform sudo dnf downgrade jboss-enterprise-application-platform-<VERSION_BEFORE_6.0.0> sudo dnf versionlock add jboss-enterprise-application-platform

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.

oracle enterprise manager ops center DOWNGRADE

Affected: 11.1.3 · 12.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.1.3

1. Check installed version

apt-cache policy enterprise-manager-ops-center || rpm -q enterprise-manager-ops-center || enterprise-manager-ops-center --version

2. No fixed release: DOWNGRADE to a release before 11.1.3 (Debian / Ubuntu)

apt-cache madison enterprise-manager-ops-center sudo apt install enterprise-manager-ops-center=<VERSION_BEFORE_11.1.3> sudo apt-mark hold enterprise-manager-ops-center

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

dnf --showduplicates list enterprise-manager-ops-center sudo dnf downgrade enterprise-manager-ops-center-<VERSION_BEFORE_11.1.3> sudo dnf versionlock add enterprise-manager-ops-center

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.

oracle http server DOWNGRADE

Affected: 10.1.3.5.0 · 11.1.1.7.0 · 12.1.2.0 · 12.1.3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.1.3.5.0

1. Check installed version

apt-cache policy http-server || rpm -q http-server || http-server --version

2. No fixed release: DOWNGRADE to a release before 10.1.3.5.0 (Debian / Ubuntu)

apt-cache madison http-server sudo apt install http-server=<VERSION_BEFORE_10.1.3.5.0> sudo apt-mark hold http-server

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

dnf --showduplicates list http-server sudo dnf downgrade http-server-<VERSION_BEFORE_10.1.3.5.0> sudo dnf versionlock add http-server

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.

oracle secure global desktop DOWNGRADE

Affected: 4.63 · 4.71 · 5.0 · 5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.63

1. Check installed version

apt-cache policy secure-global-desktop || rpm -q secure-global-desktop || secure-global-desktop --version

2. No fixed release: DOWNGRADE to a release before 4.63 (Debian / Ubuntu)

apt-cache madison secure-global-desktop sudo apt install secure-global-desktop=<VERSION_BEFORE_4.63> sudo apt-mark hold secure-global-desktop

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

dnf --showduplicates list secure-global-desktop sudo dnf downgrade secure-global-desktop-<VERSION_BEFORE_4.63> sudo dnf versionlock add secure-global-desktop

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Apache 2.4.7 mod_status - Scoreboard Handling Race Condition

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-2014-0226?

http server: upgrade to 2.2.29, 2.4.10; debian linux: mitigate or apply the listed mitigation; jboss enterprise application platform: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-0226 being exploited?

CVE-2014-0226 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-2014-0226 affect?

CVE-2014-0226 affects http server, debian linux, jboss enterprise application platform. Severity is medium (CVSS 6.8). Race condition in the mod_status module in the Apache HTTP Server before 2.4.10 allows remote attackers to cause a denial of service (heap-based buffer overflow), or possibly obtain sensitive credential information or execute arbitrary code

How urgent is CVE-2014-0226?

Priority 59/100. EPSS top 1%: very likely to be exploited; Public exploit reference; On your watchlist

Software pages

Apache HTTP Server vulnerabilities · Debian vulnerabilities · JBoss and WildFly vulnerabilities

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References

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