How many LiteSpeed Technologies OpenLiteSpeed CVEs are in CISA KEV?

None of LiteSpeed Technologies OpenLiteSpeed's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.

Are there public exploits for LiteSpeed Technologies OpenLiteSpeed vulnerabilities?

Yes — 1 of LiteSpeed Technologies OpenLiteSpeed's CVEs have a known public exploit.

Which versions of LiteSpeed Technologies OpenLiteSpeed are affected?

2 distinct LiteSpeed Technologies OpenLiteSpeed versions are named across its CVEs. Use the version filter above to see the CVEs affecting a specific version.

What are the most common weakness types in LiteSpeed Technologies OpenLiteSpeed CVEs?

LiteSpeed Technologies OpenLiteSpeed's CVEs most often map to these CWE weakness types: CWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')), CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')).

What is the average severity of LiteSpeed Technologies OpenLiteSpeed CVEs?

The average CVSS base score across LiteSpeed Technologies OpenLiteSpeed's scored CVEs is 6.8.

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LiteSpeed Technologies

2 CVEs

LiteSpeed Technologies OpenLiteSpeed Vulnerabilities

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

CVE security advisories and vulnerability history for OpenLiteSpeed by LiteSpeed Technologies.

2

Total CVEs

Published

0

In CISA KEV

Exploited in the wild

1

Public exploits

PoC or exploit code

6.8

Avg CVSS

2026–2026

Last updated March 16, 2026

Overview

LiteSpeed Technologies OpenLiteSpeed has 2 published CVE records since 2026, of which 0 are in CISA's Known Exploited Vulnerabilities catalog and 1 have a known public exploit. The average CVSS base score across scored CVEs is 6.8.

This page aggregates every publicly disclosed vulnerability (CVE) affecting LiteSpeed Technologies OpenLiteSpeed, with a severity breakdown, the affected and patched versions, the most common weakness types, and the full CVE list.

Severity and exploitation

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

Critical0

High1

Medium1

Low0

In CISA’s Known Exploited Vulnerabilities catalog

0

None of LiteSpeed Technologies OpenLiteSpeed's CVEs are currently listed in CISA's KEV catalog.

Public exploits

1

One of LiteSpeed Technologies OpenLiteSpeed's CVEs has a known public exploit available.

Affected versions and CVEs

Browse every LiteSpeed Technologies OpenLiteSpeed version named in a CVE, then pick one to see only the CVEs that affect it.

Version ranges

>= 1.7.91 CVE
>= all versions1 CVE

Find a version

2 CVEs

Sort

High vulnerability · 2026-03-16
CVE-2026-31386
Patch
CWE-78
High · CVSS 8.6
EPSS 2.1% (81th pct)2026-03-16
Openlitespeed 1.7.9 - 'Notes' Stored Cross-Site Scripting
CVE-2021-47855
Public exploit
CWE-79
Medium · CVSS 5.1
EPSS 0.3% (18th pct)2026-01-21

Common weakness types

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

Other LiteSpeed Technologies products

Browse vulnerabilities for other products by LiteSpeed Technologies.

LiteSpeed Cache12 CVEs LiteSpeed Web Server5 CVEs OpenLiteSpeed Web Server3 CVEs cPanel Plugin2 CVEs LiteSpeed Web Server Enterprise1 CVEs LSWS Enterprise1 CVEs WHM Plugin1 CVEs

All LiteSpeed Technologies vulnerabilities

Frequently asked questions

Common questions about LiteSpeed Technologies OpenLiteSpeed vulnerabilities.

How many CVEs does LiteSpeed Technologies OpenLiteSpeed have?: LiteSpeed Technologies OpenLiteSpeed has 2 published CVE records since 2026.
How many LiteSpeed Technologies OpenLiteSpeed CVEs are in CISA KEV?: None of LiteSpeed Technologies OpenLiteSpeed's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.
Are there public exploits for LiteSpeed Technologies OpenLiteSpeed vulnerabilities?: Yes — 1 of LiteSpeed Technologies OpenLiteSpeed's CVEs have a known public exploit.
Which versions of LiteSpeed Technologies OpenLiteSpeed are affected?: 2 distinct LiteSpeed Technologies OpenLiteSpeed versions are named across its CVEs. Use the version filter above to see the CVEs affecting a specific version.
What are the most common weakness types in LiteSpeed Technologies OpenLiteSpeed CVEs?: LiteSpeed Technologies OpenLiteSpeed's CVEs most often map to these CWE weakness types: CWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')), CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')).
What is the average severity of LiteSpeed Technologies OpenLiteSpeed CVEs?: The average CVSS base score across LiteSpeed Technologies OpenLiteSpeed's scored CVEs is 6.8.

References

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

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