High 8.8Published May 4, 2026

CVE-2026-7750Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow

Updated under an hour ago (Oct 26, 2026, 7:20 AM ET)

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Every CVE for Totolink N300RH

Exploited in the last 30 days

A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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: May 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Totolink N300RH totolink:n300rh_firmware	3.2.4-B20220812	CNA record

References

https://vuldb.com/vuln/360925vdb-entry, technical-description
https://vuldb.com/vuln/360925/ctisignature, permissions-required
https://vuldb.com/submit/807204third-party-advisory
https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setMacFilterRules-34553a41781f809cb952cdcb71ce90d8exploit
https://www.totolink.net/product

The CVE record on cve.org NVD's entry

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.