CVE-2024-1002: Totolink N200RE · Stack-based Buffer Overflow
Affects Totolink N200RESource CVE Database V5
Not known to be exploited · CVSS 7.2 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 1.2% chance of exploitation in 30 days – higher than 69% 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:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Jan 2024
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 2026-10-25.
What to do
AI-suggested
2) Restrict administrative access to the router’s management interface by limiting it to trusted IP addresses and using VPNs or secure management channels. 3) Disable remote management features if not strictly necessary to reduce the attack surface. 4) Monitor network traffic and device logs for unusual activity indicative of exploitation attempts, such as unexpected CGI requests targeting /cgi-bin/cstecgi.cgi. 5) Consider network segmentation to isolate vulnerable devices from critical infrastructure and sensitive data. 6) Where possible, replace affected devices with models from vendors that provide timely security updates and have a strong security track record. 7) Employ intrusion detection/prevention systems (IDS/IPS) tuned to detect buffer overflow exploit patterns targeting this router. 8) Educate IT staff about this vulnerability and the importance of rapid response to emerging threats. These steps go beyond generic advice by focusing on access control, monitoring, and device lifecycle management specific to this vulnerability and product.
Description
A vulnerability classified as critical was found in Totolink N200RE 9.3.5u.6139_B20201216. Affected by this vulnerability is the function setIpPortFilterRules of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ePort leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252271. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.