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CVE-2026-4769

Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an unauthenticated remote attacker can gain access to the internal system processes, resulting in full system compromise.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8a5701d061a855c6027f6d679d864da6aa780de4233361ab32792f873c49b089
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 8 assertions

{"defaultStatus":"unaffected","product":"0765-110x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.1.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"0765-420x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/6

{"defaultStatus":"unaffected","product":"0765-2101/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.1.102","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/3

{"defaultStatus":"unaffected","product":"0765-450x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.103","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/7

{"defaultStatus":"unaffected","product":"0765-2102/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.5.101","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/4

{"defaultStatus":"unaffected","product":"0765-120x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"0765-150x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.103","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/2

{"defaultStatus":"unaffected","product":"0765-410x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.1.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/5
cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

8 source assertions
{"defaultStatus":"unaffected","product":"0765-110x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.1.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"0765-420x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/6
{"defaultStatus":"unaffected","product":"0765-2101/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.1.102","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/3
{"defaultStatus":"unaffected","product":"0765-450x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.103","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/7
{"defaultStatus":"unaffected","product":"0765-2102/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.5.101","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/4
{"defaultStatus":"unaffected","product":"0765-120x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"0765-150x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.7.103","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/2
{"defaultStatus":"unaffected","product":"0765-410x/0100-0000","vendor":"WAGO","versions":[{"lessThan":"1.2.1.100","status":"affected","version":"1.0.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/affected/5

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-912","description":"CWE-912 Hidden Functionality","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.certvde.com/en/advisories/VDE-2026-031/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e67ad2f8d37926a1bb6dfc6be1cf757b7006c8c163e11560922d9e1a2cac28 · sha256:90947461608ecad7… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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