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VulnerabilityPublished Updated

CVE-2024-0998: Totolink N200RE · Stack-based Buffer Overflow

Affects Totolink N200RESource CVE Database V5

0

Not known to be exploited · CVSS 7.2 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.4% chance of exploitation in 30 days – higher than 72% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jan 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

Network administrators should restrict access to the router management interface by limiting it to trusted IP addresses and disabling remote management if enabled. Strong, unique administrative credentials must be enforced to prevent unauthorized authentication. Network segmentation should be applied to isolate vulnerable devices from critical systems. Monitoring network traffic for unusual patterns or unauthorized configuration changes can help detect exploitation attempts. Where possible, organizations should consider replacing affected devices with routers from vendors with active security support. Additionally, applying web application firewalls or intrusion prevention systems that can detect and block malformed HTTP requests targeting /cgi-bin/cstecgi.cgi may reduce risk. Finally, organizations should maintain awareness of any future patches or advisories from Totolink or security communities.

Description

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. It has been classified as critical. This affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252267. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

References

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