How many CVEs does lighttpd have?

lighttpd has 36 published CVE records since 2005, including 1 in the last two years.

How many lighttpd CVEs are in CISA KEV?

None of lighttpd's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.

Which lighttpd products have the most CVEs?

The lighttpd products with the most published CVEs are lighttpd, lighttpd1.4.

What are the most common weakness types in lighttpd CVEs?

lighttpd's CVEs most often map to these CWE weakness types: CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')).

Are there public exploits for lighttpd vulnerabilities?

Yes — 6 of lighttpd's CVEs have a known public exploit.

How many critical lighttpd vulnerabilities are there?

lighttpd has 2 critical and 11 high-severity CVEs.

What is the average severity of lighttpd CVEs?

The average CVSS base score across lighttpd's scored CVEs is 6.0.

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36 CVEs

lighttpd Vulnerabilities

Name: lighttpd vulnerability dataset (CVEs)
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

CVE security advisories and vulnerability history for lighttpd.

36

Total CVEs

Published

0

In CISA KEV

Exploited in the wild

6

Public exploits

PoC or exploit code

6.0

Avg CVSS

2005–2025

Overview

lighttpd has 36 published CVE records since 2005, of which 0 are in CISA's Known Exploited Vulnerabilities catalog and 6 have a known public exploit. The average CVSS base score across scored CVEs is 6.0.

This page aggregates every publicly disclosed vulnerability (CVE) affecting lighttpd products, with severity breakdowns, the most-affected products, the most common weakness types, and the latest disclosures.

Security scorecard

A quick read on lighttpd's vulnerability posture, as a share of its 36 published CVEs.

Average CVSS: 6.0
Critical / high: 36%
Actively exploited (KEV): 0%
Public exploit available: 17%
Patch available: 92%

Severity and exploitation

How the CVSS severity of lighttpd's CVEs breaks down, plus how many are exploited in the wild or have public exploit code.

Critical2

High11

Medium21

Low2

In CISA’s Known Exploited Vulnerabilities catalog

0

None of lighttpd's CVEs are currently listed in CISA's KEV catalog.

Public exploits

6

6 of lighttpd's CVEs have a known public exploit available.

Most affected products

The lighttpd products with the most published CVEs. Follow any product to browse its versions and vulnerabilities.

Common weakness types

The CWE weakness categories most often found in lighttpd CVEs. Follow any weakness for its full explanation.

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')1 CVE

CNAs that assign these CVEs

The CVE Numbering Authorities that publish lighttpd CVE records.

Disclosure activity by year

How many lighttpd CVEs were published each year.

2013

4

2014

2

2015

1

2018

1

2019

1

2022

4

2024

1

2025

1

Latest lighttpd CVEs

The most recently disclosed vulnerabilities affecting lighttpd.

HTTP Header Smuggling via Trailer Merge
CWE-444
Medium · CVSS 6.9
EPSS 0.3%2025-11-03
Use-after-free vulnerabilities in lighttpd <= 1.4.50
Medium · CVSS 5.3
EPSS 0.7%2024-06-17
High vulnerability · 2022-10-06
High · CVSS 7.5
EPSS 2.9%2022-10-06
High vulnerability · 2022-09-12
High · CVSS 7.5
EPSS 2.1%2022-09-12
High vulnerability · 2022-06-11
High · CVSS 7.5
EPSS 56.9%2022-06-11
Medium vulnerability · 2022-01-06
Medium · CVSS 5.9
EPSS 9.0%2022-01-06
Critical vulnerability · 2019-04-10
Critical · CVSS 9.8
EPSS 73.8%2019-04-10
High vulnerability · 2018-11-07
High · CVSS 7.5
EPSS 14.1%2018-11-07
High vulnerability · 2015-06-09
High · CVSS 7.5
EPSS 10.0%2015-06-09
Critical vulnerability · 2014-03-14
Critical · CVSS 9.8
EPSS 62.8%2014-03-14
Medium vulnerability · 2014-03-14
Medium · CVSS 5.0
EPSS 28.8%2014-03-14
High vulnerability · 2013-11-19
High · CVSS 7.6
EPSS 10.7%2013-11-19

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Frequently asked questions

Common questions about lighttpd vulnerabilities.

How many CVEs does lighttpd have?: lighttpd has 36 published CVE records since 2005, including 1 in the last two years.
How many lighttpd CVEs are in CISA KEV?: None of lighttpd's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.
Which lighttpd products have the most CVEs?: The lighttpd products with the most published CVEs are lighttpd, lighttpd1.4.
What are the most common weakness types in lighttpd CVEs?: lighttpd's CVEs most often map to these CWE weakness types: CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')).
Are there public exploits for lighttpd vulnerabilities?: Yes — 6 of lighttpd's CVEs have a known public exploit.
How many critical lighttpd vulnerabilities are there?: lighttpd has 2 critical and 11 high-severity CVEs.
What is the average severity of lighttpd CVEs?: The average CVSS base score across lighttpd's scored CVEs is 6.0.

References

Vulnerability data is sourced from the CVE Program; severity, KEV, and exploit signals are aggregated by RadicalNotion.AI.

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