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Critical 9.9Published Sep 3, 2026

CVE-2026-85031TOTOLINK CP450 cstecgi.cgi buffer overflow

Updated under an hour ago ()

Does this affect you?

It affects TOTOLINK CP450. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A vulnerability was found in TOTOLINK CP450 4.1.0. The impacted element is an unknown function of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument topicurl results in buffer overflow. Remote exploitation of the attack is possible.

CVSS
9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE)
CWE-120, CWE-119
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulDB
NVD analysis
Deferred
Record last updated
Sep 3, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
TOTOLINK CP450
totolink:cp450_firmware
4.1.0
CNA record

References

  • vdb-entry, technical-description
  • signature, permissions-required
  • third-party-advisory
  • third-party-advisory
  • product

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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