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EUVD-2021-21676

🗓️ 07 Oct 2025 00:30:54Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 20 Views

Authentication bypass in Zyxel USG/Zywall firmware allowing remote command execution by attackers

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-35029
2 Jul 202111:15
–attackerkb
githubexploit
GithubExploit
Stuff_and_POCs
21 Mar 202214:32
–githubexploit
circl
Circl
CVE-2021-35029
28 Jun 202113:17
–circl
cnnvd
CNNVD
ZyXEL ZyWALL USG authorization issue vulnerability
2 Jul 202100:00
–cnnvd
cve
CVE
CVE-2021-35029
2 Jul 202110:29
–cve
cvelist
Cvelist
CVE-2021-35029
2 Jul 202110:29
–cvelist
nvd
NVD
CVE-2021-35029
2 Jul 202111:15
–nvd
osv_cve
osv_cve
CVE-2021-35029
2 Jul 202111:15
–osv_cve
prion
Prion
Authentication flaw
2 Jul 202111:15
–prion
ptsecurity
Positive Technologies
PT-2021-20802
2 Jul 202100:00
–ptsecurity
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "b54df086-8246-367b-b703-0ea9983c1d3c",
        "vendor": {
          "name": "Zyxel"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "794c35c6-94bd-306e-9f24-6c6a29734aa9",
        "product": {
          "name": "VPN series Firmware"
        },
        "product_version": "4.35 through 5.01"
      },
      {
        "id": "b7c88e9f-5266-3d27-9e76-2512febea3e6",
        "product": {
          "name": "USG/Zywall series Firmware"
        },
        "product_version": "4.35 through 4.64"
      },
      {
        "id": "bcd273af-a0c8-3727-bba7-de74356d416d",
        "product": {
          "name": "USG FLEX series firmware"
        },
        "product_version": "4.35 through 5.01"
      },
      {
        "id": "fda56a23-4244-3a29-9e07-e36b3ecb59bd",
        "product": {
          "name": "ATP series firmware"
        },
        "product_version": "4.35 through 5.01"
      }
    ]
  }
]

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07 Oct 2025 00:30Current
8.1High risk
Vulners AI Score8.1
CVSS 3.19.8
CVSS 27.5
EPSS0.02255
20