CVE-2020-26567

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 15.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-10-08 · updated 2026-06-17
Weakness: CWE-306

Description

An issue was discovered on D-Link DSR-250N before 3.17B devices. The CGI script upgradeStatusReboot.cgi can be accessed without authentication. Any access reboots the device, rendering it therefore unusable for several minutes.

Affected products

Dlink Dsr-250N Firmware: before 3.17b — fixed in 3.17b

How to fix

Upgrade to a fixed version: Dlink Dsr-250N Firmware 3.17b. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/159516/D-Link-DSR-250N-Denial-Of-Service.html
http://seclists.org/fulldisclosure/2020/Oct/14
https://www.redteam-pentesting.de/advisories/rt-sa-2020-002
http://packetstormsecurity.com/files/159516/D-Link-DSR-250N-Denial-Of-Service.html
http://seclists.org/fulldisclosure/2020/Oct/14
https://www.redteam-pentesting.de/advisories/rt-sa-2020-002

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