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CVE-2025-12240

🗓️ 27 Oct 2025 06:32:14Reported by VulDBType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 53 Views🌐 WEB

CVE-2025-12240 on Totolink A3300R enables remote buffer overflow via setDmzCfg in cstecgi.cgi by ip address manipulation.

Related
Detection
Affected
Refs
Paths
Social
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
TOTOLINK A3300R cgi-bin/cstecgi.cgi setDmzCfg DoS
28 Oct 202500:00
–bdu_fstec
circl
Circl
CVE-2025-12240
27 Oct 202507:31
–circl
cnnvd
CNNVD
TOTOLINK A3300R security vulnerabilities
27 Oct 202500:00
–cnnvd
cnvd
CNVD
TOTOLINK A3300R cstecgi.cgi File Buffer Overflow Vulnerability
31 Oct 202500:00
–cnvd
cvelist
Cvelist
CVE-2025-12240 TOTOLINK A3300R cstecgi.cgi setDmzCfg buffer overflow
27 Oct 202506:32
–cvelist
euvd
EUVD
EUVD-2025-36097
27 Oct 202506:32
–euvd
nvd
NVD
CVE-2025-12240
27 Oct 202507:15
–nvd
osv_cve
osv_cve
CVE-2025-12240
27 Oct 202507:15
–osv_cve
ptsecurity
Positive Technologies
PT-2025-43896
27 Oct 202500:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2025-12240: Buffer Copy without Checking Size of Input
27 Oct 202500:00
–rapid7
Rows per page
NVD
Vulners
Node
AND
totolinka3300r_firmwareMatch17.0.0cu.557_b20221024
[
  {
    "vendor": "TOTOLINK",
    "product": "A3300R",
    "versions": [
      {
        "version": "17.0.0cu.557_B20221024",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
iprequest body/cgi-bin/cstecgi.cgiThe setDmzCfg function in /cgi-bin/cstecgi.cgi is vulnerable to a buffer overflow when processing the 'ip' argument, potentially allowing remote code execution.CWE-119, CWE-120

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08 Oct 2026 11:10Current
8.2High risk
Vulners AI Score8.2
CVSS 3.18.8 - 9.8
CVSS 48.7
CVSS 38.8
CVSS 29
EPSS0.00836
SSVC
53