CVE-2020-24990

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-28 · updated 2026-06-17
Weakness: CWE-22

Description

An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.

Affected products

Qsc Q-Sys Core Manager: 8.2.1

References

http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html
http://seclists.org/fulldisclosure/2020/Oct/30
https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm
http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html
http://seclists.org/fulldisclosure/2020/Oct/30
https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm

Get alerted when CVE-2020-24990 or the next vulnerability affects your stack