CVE-2026-19814

🗓️ 14 Aug 2026 08:15:09Reported by VulDBType

cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 42 Views🌐 WEB

Stack-based buffer overflow in TOTOLINK A800R setMacQos via macAddress allows remote attack.

Reporter	Title	Published	Views	Family All 8
attackerkb	CVE-2026-19814	14 Aug 202608:15	–	attackerkb
Circl	CVE-2026-19814	14 Aug 202610:54	–	circl
Cvelist	CVE-2026-19814 TOTOLINK A800R firewall.so cstecgi.cgi setMacQos stack-based overflow	14 Aug 202608:15	–	cvelist
EUVD	EUVD-2026-58612	14 Aug 202608:15	–	euvd
NVD	CVE-2026-19814	14 Aug 202609:16	–	nvd
Positive Technologies	PT-2026-71975	14 Aug 202600:00	–	ptsecurity
Rapid7 Vulnerability Database (full)	CVE-2026-19814: Stack-based Buffer Overflow	14 Aug 202600:00	–	rapid7
Vulnrichment	CVE-2026-19814 TOTOLINK A800R firewall.so cstecgi.cgi setMacQos stack-based overflow	14 Aug 202608:15	–	vulnrichment

Vulners

Node

totolink a800rMatch4.1.2cu.5137_b20200730

[
  {
    "vendor": "TOTOLINK",
    "product": "A800R",
    "versions": [
      {
        "version": "4.1.2cu.5137_B20200730",
        "status": "affected"
      }
    ],
    "cpes": [
      "cpe:2.3:o:totolink:a800r_firmware:*:*:*:*:*:*:*:*"
    ],
    "modules": [
      "firewall.so"
    ]
  }
]

Source	Link
vuldb	www.vuldb.com/vuln/389950/cti
vuldb	www.vuldb.com/vuln/389950
totolink	www.totolink.net/
vuldb	www.vuldb.com/cve/CVE-2026-19814
vuldb	www.vuldb.com/submit/869431
github	www.github.com/panda666-888/vuls/blob/main/totolink/a800r/setMacQos.md

Parameter	Position	Path	Description	CWE
macAddress	request body	cgi-bin/cstecgi.cgi	Stack-based buffer overflow via macAddress argument in setMacQos function (remote exploit).	CWE-119, CWE-121

14 Aug 2026 19:09Current

8.8High risk

Vulners AI Score8.8

CVSS 48.7

CVSS 3.18.8

CVSS 38.8

CVSS 29

EPSS0.00854

SSVC