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EUVD-2021-21234

🗓️ 07 Oct 2025 00:30:54Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 3 Views

Crafted requests exploit CODESYS V2 web server to read memory or cause denial of service crash.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2021-34584
26 Oct 202114:14
circl
CNNVD
CODESYS 安全漏洞
26 Oct 202100:00
cnnvd
CVE
CVE-2021-34584
26 Oct 202109:55
cve
Cvelist
CVE-2021-34584 CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)
26 Oct 202109:55
cvelist
NVD
CVE-2021-34584
26 Oct 202110:15
nvd
OSV
CVE-2021-34584
26 Oct 202110:15
osv
Prion
Design/Logic Flaw
26 Oct 202110:15
prion
Positive Technologies
PT-2021-20565 · 3S Smart Software Solutions · Codesys V2
26 Oct 202100:00
ptsecurity
Tenable Nessus
Wago CODESYS V2 Web-Server Buffer Over-read (CVE-2021-34584)
9 Sep 202500:00
nessus
[
  {
    "enisaIdVendor": [
      {
        "id": "5827c46e-180d-3879-a09d-b33925eaeb08",
        "vendor": {
          "name": "CODESYS"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "24b7eb8b-4895-354c-8976-1141b3bd9bc9",
        "product": {
          "name": "CODESYS V2"
        },
        "product_version": "all web servers <V1.1.9.22"
      }
    ]
  }
]

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07 Oct 2025 00:30Current
9High risk
Vulners AI Score9
CVSS 3.19.1
CVSS 26.4
EPSS0.01075
3