CVE-2021-26758

high

Description

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.

References

https://www.exploit-db.com/exploits/49556

https://github.com/litespeedtech/openlitespeed/issues/217

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-13545

https://docs.unsafe-inline.com/0day/openlitespeed-web-server-1.7.8-command-injection-to-privilege-escalation-cve-2021-26758

Details

Source: Mitre, NVD

Published: 2021-04-07

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H