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Openlitespeed

12 CVEs product

Monthly

CVE-2026-31386 Mar 16, 05:21 HIGH This Week

OS command injection in OpenLiteSpeed and LSWS Enterprise web servers from LiteSpeed Technologies allows administrative users to execute arbitrary operating system commands on the host. The flaw affects all versions of both products per ENISA EUVD and was reported by JPCERT/CC via JVN. No public exploit identified at time of analysis and EPSS exploitation probability is low (0.16%, 37th percentile), but the high CVSS 4.0 score (8.6) reflects full confidentiality, integrity, and availability impact on the underlying host.

Command Injection Lsws Enterprise Openlitespeed Litespeed Technologies
NVD VulDB
CVSS 4.0
8.6
EPSS
0.2%
CVE-2025-54939 Aug 01, 06:15 MEDIUM POC This Month

LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Openlitespeed Litespeed Web Adc Litespeed Web Server Lsquic +1
NVD GitHub
CVSS 3.1
5.3
EPSS
0.1%
CVE-2024-31617 May 22, 18:15 MEDIUM This Month

OpenLiteSpeed before 1.8.1 mishandles chunked encoding. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Openlitespeed Litespeedtech
NVD GitHub
CVSS 3.1
5.3
EPSS
0.4%
CVE-2023-40518 Aug 14, 22:15 HIGH This Week

LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Openlitespeed Litespeedtech
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2022-0074 Oct 27, 20:15 HIGH POC This Week

Untrusted Search Path vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server Container allows Privilege Escalation. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Privilege Escalation Openlitespeed Litespeedtech
NVD GitHub
CVSS 3.1
8.8
EPSS
1.2%
CVE-2022-0073 Oct 27, 20:15 HIGH POC This Week

Improper Input Validation vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Command Injection. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Command Injection Openlitespeed Litespeedtech
NVD GitHub
CVSS 3.1
8.8
EPSS
8.7%
CVE-2022-0072 Oct 27, 20:15 MEDIUM POC This Month

Directory Traversal vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Path Traversal. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Path Traversal Openlitespeed Litespeedtech
NVD GitHub
CVSS 3.1
5.8
EPSS
1.0%
CVE-2021-26758 Apr 07, 21:15 HIGH POC This Week

Privilege Escalation in LiteSpeed Technologies OpenLiteSpeed web server version 1.7.8 allows attackers to gain root terminal access and execute commands on the host system. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Privilege Escalation Openlitespeed Litespeedtech
NVD GitHub Exploit-DB
CVSS 3.1
8.8
EPSS
2.7%
CVE-2020-5519 Jan 06, 13:15 CRITICAL Act Now

The WebAdmin Console in OpenLiteSpeed before v1.6.5 does not strictly check request URLs, as demonstrated by the "Server Configuration > External App" screen. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Openlitespeed Litespeedtech
NVD
CVSS 3.1
9.8
EPSS
1.2%
CVE-2018-19792 Dec 03, 06:29 MEDIUM POC This Month

The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 allows local users to cause a denial of service (buffer overflow) or possibly have unspecified other impact by creating a symlink through which. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Buffer Overflow Denial Of Service Openlitespeed Litespeedtech
NVD GitHub
CVSS 3.0
6.7
EPSS
0.4%
CVE-2018-19791 Dec 03, 06:29 MEDIUM POC This Month

The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Openlitespeed Litespeedtech
NVD GitHub
CVSS 3.0
6.5
EPSS
1.2%
CVE-2015-3890 Sep 20, 18:29 HIGH This Week

Use-after-free vulnerability in Open Litespeed before 1.3.10. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption Openlitespeed Litespeedtech
NVD
CVSS 3.1
7.5
EPSS
0.5%
EPSS 0% CVSS 8.6
HIGH This Week

OS command injection in OpenLiteSpeed and LSWS Enterprise web servers from LiteSpeed Technologies allows administrative users to execute arbitrary operating system commands on the host. The flaw affects all versions of both products per ENISA EUVD and was reported by JPCERT/CC via JVN. No public exploit identified at time of analysis and EPSS exploitation probability is low (0.16%, 37th percentile), but the high CVSS 4.0 score (8.6) reflects full confidentiality, integrity, and availability impact on the underlying host.

Command Injection Lsws Enterprise Openlitespeed +1
NVD VulDB
EPSS 0% CVSS 5.3
MEDIUM POC This Month

LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Openlitespeed Litespeed Web Adc +3
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM This Month

OpenLiteSpeed before 1.8.1 mishandles chunked encoding. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Openlitespeed Litespeedtech
NVD GitHub
EPSS 1% CVSS 7.5
HIGH This Week

LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Openlitespeed Litespeedtech
NVD
EPSS 1% CVSS 8.8
HIGH POC This Week

Untrusted Search Path vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server Container allows Privilege Escalation. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Privilege Escalation Openlitespeed Litespeedtech
NVD GitHub
EPSS 9% CVSS 8.8
HIGH POC This Week

Improper Input Validation vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Command Injection. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Command Injection Openlitespeed Litespeedtech
NVD GitHub
EPSS 1% CVSS 5.8
MEDIUM POC This Month

Directory Traversal vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Path Traversal. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Path Traversal Openlitespeed Litespeedtech
NVD GitHub
EPSS 3% CVSS 8.8
HIGH POC This Week

Privilege Escalation in LiteSpeed Technologies OpenLiteSpeed web server version 1.7.8 allows attackers to gain root terminal access and execute commands on the host system. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Privilege Escalation Openlitespeed Litespeedtech
NVD GitHub Exploit-DB
EPSS 1% CVSS 9.8
CRITICAL Act Now

The WebAdmin Console in OpenLiteSpeed before v1.6.5 does not strictly check request URLs, as demonstrated by the "Server Configuration > External App" screen. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Openlitespeed Litespeedtech
NVD
EPSS 0% CVSS 6.7
MEDIUM POC This Month

The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 allows local users to cause a denial of service (buffer overflow) or possibly have unspecified other impact by creating a symlink through which. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Buffer Overflow Denial Of Service Openlitespeed +1
NVD GitHub
EPSS 1% CVSS 6.5
MEDIUM POC This Month

The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Openlitespeed Litespeedtech
NVD GitHub
EPSS 0% CVSS 7.5
HIGH This Week

Use-after-free vulnerability in Open Litespeed before 1.3.10. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption +2
NVD

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