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), CWE-79 (Improper Neutralization of Input During Web Page Generation).

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.

LiteSpeed Technologies OpenLiteSpeed Vulnerabilities: CVEs, CISA KEV & Security Advisories

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

RadicalNotion.AI

Overview

LiteSpeed Technologies OpenLiteSpeed has 2 published CVE records since 2026, of which none are in CISA's KEV catalog and 1 has a known public exploit. The average CVSS base score across scored CVEs is 6.8.

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

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

Public exploits

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

OpenLiteSpeed and LSWS Enterprise vulnerable to OS command injection
CVE-2026-31386
Patch
Workaround
CWE-78
High · CVSS 8.6
EPSS 1.6% (76th 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% (21th 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 CVE LSWS Enterprise1 CVE WHM Plugin

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), CWE-79 (Improper Neutralization of Input During Web Page Generation).
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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