CVE-2014-2323: SQL injection vulnerability in mod_mysql_vhost.c in lighttpd before 1.4.35 allows remote attackers to execute

Q: How do I fix CVE-2014-2323?

lighttpd: upgrade to 1.4.35; debian linux: mitigate or apply the listed mitigation; opensuse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2014-2323 being exploited?

CVE-2014-2323 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-2014-2323 affect?

CVE-2014-2323 affects lighttpd, debian linux, opensuse. Severity is critical (CVSS 9.8). SQL injection vulnerability in mod_mysql_vhost.c in lighttpd before 1.4.35 allows remote attackers to execute arbitrary SQL commands via the host name, related to request_check_hostname.

Q: How urgent is CVE-2014-2323?

Priority 74/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2014-2323 is a critical-severity flaw (CVSS 9.8) affecting lighttpd, debian linux, opensuse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in mod_mysql_vhost.c in lighttpd before 1.4.35 allows remote attackers to execute arbitrary SQL commands via the host name, related to request_check_hostname.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	62.8% (top 1%)
CISA exploited list	No
Weakness	CWE-89
Published	2014-03-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · lighttpd · opensuse · suse

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

Am I affected?

Timeline

2014-03-14 15:55 UTCPublished CVE record published
2026-06-17 00:06 UTCUpdated Record last modified

lighttpd lighttpd UPGRADE

Affected: < 1.4.35

Fixed in: 1.4.35

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.4.35 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lighttpd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lighttpd

Note

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

debian debian linux MITIGATE

Affected: 6.0 · 7.0 · 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

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.

opensuse opensuse MITIGATE

Affected: 11.4 · 12.3 · 13.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.4

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.

suse linux enterprise high availability extension MITIGATE

Affected: 11 sp3

Fixed in: no fixed release known

Safe to downgrade to: a release before 11

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.

suse linux enterprise software development kit MITIGATE

Affected: 11 sp3

Fixed in: no fixed release known

Safe to downgrade to: a release before 11

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · rust-ingredients · FIXED · 0.3.3-2.fc46 · FEDORA-2026-0b3d9feffd · source

sudo dnf upgrade --advisory=FEDORA-2026-0b3d9feffd

Fedora ELN · dpkg · FIXED · 1.23.11-2.eln159 · FEDORA-2026-732e4ac21b · source

sudo dnf upgrade --advisory=FEDORA-2026-732e4ac21b

Debian 12 · lighttpd · FIXED · 1.4.33-1+nmu3

sudo apt update && sudo apt install --only-upgrade lighttpd dpkg --compare-versions "$(dpkg-query -W -f='${Version}' lighttpd)" ge "1.4.33-1+nmu3" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · lighttpd · FIXED · 1.4.33-1+nmu3

sudo apt update && sudo apt install --only-upgrade lighttpd dpkg --compare-versions "$(dpkg-query -W -f='${Version}' lighttpd)" ge "1.4.33-1+nmu3" && echo PATCHED || echo STILL-VULNERABLE

Amazon Linux 1 · see advisory · FIXED · ALAS-2014-346 · source

sudo yum update --advisory=ALAS-2014-346

Public exploits and detection

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

GitHub PoC: cirocosta/lighty-sqlinj-demo (8 stars)
Nuclei scan template: Lighttpd 1.4.34 SQL Injection and Path Traversal

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-2014-2323?

lighttpd: upgrade to 1.4.35; debian linux: mitigate or apply the listed mitigation; opensuse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-2323 being exploited?

CVE-2014-2323 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-2014-2323 affect?

CVE-2014-2323 affects lighttpd, debian linux, opensuse. Severity is critical (CVSS 9.8). SQL injection vulnerability in mod_mysql_vhost.c in lighttpd before 1.4.35 allows remote attackers to execute arbitrary SQL commands via the host name, related to request_check_hostname.

How urgent is CVE-2014-2323?

Priority 74/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

MySQL vulnerabilities · Debian vulnerabilities · lighttpd vulnerabilities

Related CVEs

CVE-2025-12642 CRITICAL 9.1 DOWNGRADE lighttpd1.4.80 incorrectly merged trailer fields into headers after http request parsing
CVE-2022-41556 HIGH 7.5 UPGRADE MITIGATE A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connectio
CVE-2022-37797 HIGH 7.5 DOWNGRADE MITIGATE In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (we
CVE-2022-30780 HIGH 7.5 DOWNGRADE Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stu
CVE-2019-11072 CRITICAL 9.8 UPGRADE lighttpd before 1.4.54 has a signed integer overflow, which might allow remote attackers to cause a denial of

References

← Back to latest CVEs