9.8Critical
Totolink X5000r Firmware
CVE-2025-13184
Unauthenticated Telnet enablement via cstecgi.cgi (auth bypass) leading to unauthenticated root login with a blank password on factory/reset X5000R V9.1.0u.6369_B20230113 (arbitrary command execution). Earlier versions that share the same implementation, may also be affected.
What this means for your business
- It affects Totolink X5000r Firmware. It matters if your company, or a supplier that handles your data, runs it.
- Code showing how to exploit it has been published, but real attacks have not been confirmed.
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
What to do
- 1Check whether your company or your suppliers run Totolink X5000r Firmware, and which version. The affected versions are listed further down this page.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 9.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-863
- Assigned by
- cret@cert.org
Dates
- Published
- 2025-12-10
- Last modified
- 2026-09-25
- Sources
- NVD
Affected products
- Totolink X5000r Firmware9.1.0u.6369 b20230113
- Totolink X5000rall versions
As listed in the NVD configuration data. Not a statement about your estate.