CVE-2025-55895: TOTOLINK A3300R · Improper Access Control
Source CVE Database V5
Not known to be exploited · CVSS 9.1 Critical.
Data as of 26 Oct 2026, 12:29 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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
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
AI-suggested
- Immediately inventory and identify all TOTOLINK A3300R and N200RE routers within the network to assess exposure.
- Monitor vendor communications closely for firmware updates addressing CVE-2025-55895 and apply patches promptly once available.
- Until patches are released, disable remote management interfaces or restrict access to trusted IP addresses via firewall rules to prevent unauthorized external access.
- Implement network segmentation to isolate vulnerable devices from critical systems and sensitive data.
- Employ intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection tuned to identify suspicious payloads targeting router management interfaces.
- Regularly audit router configurations for unauthorized changes and enable logging to detect exploitation attempts.
- Educate IT staff on this vulnerability and ensure incident response plans include steps for potential exploitation scenarios.
- Consider deploying network access control (NAC) solutions to enforce device compliance and limit exposure.
- For organizations using these routers in remote or branch offices, evaluate alternative secure VPN or management solutions to reduce reliance on vulnerable devices.
- Engage with TOTOLINK support channels for guidance and early access to security patches or mitigations.
Description
TOTOLINK A3300R V17.0.0cu.557_B20221024 and N200RE V9.3.5u.6448_B20240521 and V9.3.5u.6437_B20230519 are vulnerable to Incorrect Access Control. Attackers can send payloads to the interface without logging in (remote).