Stack Buffer Overflow Vulnerability Exists
Source GCVE Database
Not known to be exploited · CVSS 6.5 Medium.
Data as of 13 Nov 2026, 18:31 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 13 Nov 2026.
What to do
AI-suggested
Until an official fix is available, restrict access to the router's web interface from untrusted networks to reduce exposure. Monitor vendor channels for updates and apply patches promptly once released.
Description
A stack buffer overflow vulnerability exists in the ToToLink LR1200GB and NR1800X router firmware in the cstecgi.cgi binary's setDefResponse function. The vulnerability arises from the use of strcpy() without length validation on the "IpAddress" parameter from web requests. This can lead to memory corruption or arbitrary code execution without requiring authentication. The issue affects specific firmware versions of these routers.