CVE-2026-19844

🗓️ 14 Aug 2026 16:45:11Reported by VulDBType

cve🔗 web.nvd.nist.gov👁 32 Views🌐 WEB

Stack-based buffer overflow in TOTOLINK A800R setRadvdCfg via radvdinterfacename allows remote attack.

Reporter	Title	Published	Views	Family All 7
ATTACKERKB	CVE-2026-19844	14 Aug 202616:45	–	attackerkb
Circl	CVE-2026-19844	14 Aug 202618:00	–	circl
Cvelist	CVE-2026-19844 TOTOLINK A800R ipv6.so cstecgi.cgi setRadvdCfg stack-based overflow	14 Aug 202616:45	–	cvelist
EUVD	EUVD-2026-58726	14 Aug 202616:45	–	euvd
NVD	CVE-2026-19844	14 Aug 202617:17	–	nvd
Positive Technologies	PT-2026-72061	14 Aug 202600:00	–	ptsecurity
Vulnrichment	CVE-2026-19844 TOTOLINK A800R ipv6.so cstecgi.cgi setRadvdCfg stack-based overflow	14 Aug 202616:45	–	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": [
      "ipv6.so"
    ]
  }
]

Source	Link
vuldb	www.vuldb.com/vuln/389980
totolink	www.totolink.net/
vuldb	www.vuldb.com/submit/869443
vuldb	www.vuldb.com/cve/CVE-2026-19844
github	www.github.com/panda666-888/vuls/blob/main/totolink/a800r/setRadvdCfg.md
vuldb	www.vuldb.com/vuln/389980/cti

Parameter	Position	Path	Description	CWE
radvdinterfacename	request body	/cgi-bin/cstecgi.cgi	Stack-based buffer overflow in setRadvdCfg via manipulated radvdinterfacename parameter in cstecgi.cgi (ipv6.so); remote exploitation possible.	CWE-119, CWE-121

18 Aug 2026 14:16Current

8.7High risk

Vulners AI Score8.7

CVSS 48.7

CVSS 3.18.8

CVSS 29

CVSS 38.8

EPSS0.00493

SSVC