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CVE-2026-14818

🗓️ 04 Aug 2026 02:28:53Reported by ZyxelType 
cve
 cve
🔗 web.nvd.nist.gov👁 91 Views

Authenticated administrator can exploit path traversal in CLI to execute a malicious config on Zyxel devices.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-14818
4 Aug 202602:28
attackerkb
circl
Circl
CVE-2026-14818
4 Aug 202608:15
circl
cvelist
Cvelist
CVE-2026-14818
4 Aug 202602:28
cvelist
euvd
EUVD
EUVD-2026-52569
4 Aug 202602:28
euvd
nvd
NVD
CVE-2026-14818
4 Aug 202604:16
nvd
ptsecurity
Positive Technologies
PT-2026-67635
4 Aug 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-14818
4 Aug 202602:28
vulnrichment
nessus
Tenable Nessus
Zyxel USG FLEX 50(W) / USG20(W)-VPN 4.16 < 5.43 / ATP 4.32 < 5.43 / USG FLEX 4.50 < 5.43 Path Traversal
14 Aug 202600:00
nessus
[
  {
    "vendor": "Zyxel",
    "product": "ATP series firmware",
    "versions": [
      {
        "status": "affected",
        "version": "from V4.32 through V5.42 Patch 1"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Zyxel",
    "product": "USG FLEX series firmware",
    "versions": [
      {
        "status": "affected",
        "version": "from V4.50 through V5.42 Patch 1"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Zyxel",
    "product": "USG FLEX 50(W) series firmware",
    "versions": [
      {
        "status": "affected",
        "version": "from V4.16 through V5.42 Patch 1"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Zyxel",
    "product": "USG20(W)-VPN series firmware",
    "versions": [
      {
        "status": "affected",
        "version": "from V4.16 through V5.42 Patch 1"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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04 Aug 2026 19:16Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.2
EPSS0.00359
SSVC
91