CVE-2025-52089: n300rb · Missing Authentication
Affects n300rbSource CVE Database V5
Public exploit available (Exploit-DB) · CVSS 8.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 9.6% chance of exploitation in 30 days – higher than 95% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 11 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by MITRE Corporation
, 25 days before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, the same day as disclosure
First Exploit-DB entry (opens in a new tab)
TOTOLINK N300RB 8.54 - Command Execution
, 5 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Totolinktotolink/n300rbpkg:deb/totolink/n300rbOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Organizations should immediately inventory their network devices to identify any TOTOLINK N300RB routers running firmware version 8.54. Implement strict access control lists (ACLs) to restrict management access to specific IP addresses or VLANs. Monitoring network traffic for unusual command execution or administrative access attempts can help detect exploitation attempts. Where possible, replace vulnerable devices with models from vendors with active security support. Additionally, enforce strong network authentication mechanisms and consider disabling any remote support features if configurable. Regularly check for firmware updates from TOTOLINK and apply patches promptly once available. Educate staff about the risks of connecting unauthorized devices to the network to reduce the risk of local network compromise.
Description
A hidden remote support feature protected by a static secret in TOTOLINK N300RB firmware version 8.54 allows an authenticated attacker to execute arbitrary OS commands with root privileges.