CVE-2026-121617

🗓️ 04 Nov 2026 02:45:20Reported by VulDBType

cve🔗 web.nvd.nist.gov👁 10 Views🌐 WEB

Remote out-of-bounds write in Linksys E5600 Header Parser via /cgi-bin/upload_fw.cgi.

Reporter	Title	Published	Views	Family All 6
Circl	CVE-2026-121617	4 Nov 202603:40	–	circl
Cvelist	CVE-2026-121617 Linksys E5600 Header upload_fw.cgi init_multipart out-of-bounds write	4 Nov 202602:45	–	cvelist
EUVD	EUVD-2026-116695	4 Nov 202602:45	–	euvd
NVD	CVE-2026-121617	4 Nov 202603:17	–	nvd
Positive Technologies	PT-2026-136821	4 Nov 202600:00	–	ptsecurity
Rapid7 Vulnerability Database (full)	CVE-2026-121617: Linksys E5600: A security flaw has been discovered in Linksys E5600 1.1.0.26	4 Nov 202600:00	–	rapid7

[
  {
    "vendor": "Linksys",
    "product": "E5600",
    "versions": [
      {
        "version": "1.1.0.26",
        "status": "affected"
      }
    ],
    "cpes": [
      "cpe:2.3:o:linksys:e5600_firmware:*:*:*:*:*:*:*:*"
    ],
    "modules": [
      "Header Parser"
    ]
  }
]

Source	Link
vuldb	www.vuldb.com/vuln/430465
vuldb	www.vuldb.com/cve/CVE-2026-121617
vuldb	www.vuldb.com/submit/1023313
github	www.github.com/Zimo-666/E5600-cves/tree/main/04-upload-fw-multipart-overflow
linksys	www.linksys.com/
vuldb	www.vuldb.com/vuln/430465/cti

Parameter	Position	Path	Description	CWE
multipart	request body	/cgi-bin/upload_fw.cgi	The init_multipart function in /cgi-bin/upload_fw.cgi is vulnerable to an out-of-bounds write when processing multipart data.	CWE-119, CWE-787

04 Nov 2026 03:17Current

6.9Medium risk

Vulners AI Score6.9

CVSS 3.17.5

CVSS 37.5

CVSS 27.8

CVSS 48.7

EPSS0.0047