CVE-2026-7748

🗓️ 04 May 2026 08:30:14Reported by VulDBType

cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 11 Views🌐 WEB

Remote buffer overflow in Totolink N300RH setUpgradeFW via cstecgi.cgi when FileName manipulated.

Reporter	Title	Published	Views	Family All 9
ATTACKERKB	CVE-2026-7748	4 May 202608:30	–	attackerkb
Circl	CVE-2026-7748	4 May 202610:28	–	circl
CNNVD	TOTOLINK N300RH 缓冲区错误漏洞	4 May 202600:00	–	cnnvd
Cvelist	CVE-2026-7748 Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow	4 May 202608:30	–	cvelist
EUVD	EUVD-2026-26939	4 May 202608:30	–	euvd
NVD	CVE-2026-7748	4 May 202610:16	–	nvd
Positive Technologies	PT-2026-36793	17 Apr 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-7748	5 Jun 202619:22	–	redhatcve
Vulnrichment	CVE-2026-7748 Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow	4 May 202608:30	–	vulnrichment

[
  {
    "vendor": "Totolink",
    "product": "N300RH",
    "versions": [
      {
        "version": "3.2.4-B20220812",
        "status": "affected"
      }
    ],
    "cpes": [
      "cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*"
    ],
    "modules": [
      "POST Request Handler"
    ]
  }
]

Source	Link
vuldb	www.vuldb.com/vuln/360923
lavender-bicycle-a5a	www.lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setUpgradeFW-34553a41781f80abb1d1c627d7ff4329
vuldb	www.vuldb.com/submit/807202
totolink	www.totolink.net/
vuldb	www.vuldb.com/vuln/360923/cti

Parameter	Position	Path	Description	CWE
FileName	request body	/cgi-bin/cstecgi.cgi	Manipulation of the FileName argument in setUpgradeFW can lead to a buffer overflow via POST /cgi-bin/cstecgi.cgi.	CWE-119, CWE-120

04 May 2026 15:17Current

7.8High risk

Vulners AI Score7.8

CVSS 48.7

CVSS 3.18.8

CVSS 29

CVSS 38.8

EPSS0.00099

SSVC