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CVE-2026-22109

Default WebUI passwords stored in plaintext

Products / packages Delta Electronics Delta UFC500

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 00:30:33 UTC
DIVD · CVSS:4.0 · 8.4
Assessment vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:H/SI:H/SA:L

Severity

high8.4

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

Delta Electronics' Delta UFC500 versions less than 1.4.7 store default WebUI passwords in plaintext. An attacker with access to the device may obtain these default credentials. The impact is uncertain.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Delta Electronics · DIVD

Delta UFC500

1 range
DIVD version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

unaffected

unknown

2.4.18

Other versions: unknown

Delta Electronics · DIVD

Delta UFC500

1 range
DIVD version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 1.4.7

semver versions

unaffected

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

Update to the latest version.

DIVD guidance ↗

Change the default password for each account to a unique, non-default password.

DIVD guidance ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

The shipped WebUI template database retains the factory default passwords for all five account types in cleartext. Defaults are identical across devices and were unchanged on the tested unit.

References

2 sources
csirt.divd.nl/DIVD-2026-00012
Source referenceDIVD
csirt.divd.nl/CVE-2026-22109
Security advisoryDIVD

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-22109

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-1392 ↗

CWE-1392 Use of default credentials

DIVD

Related →
Contributing organizations · 2
DIVD

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-10-30

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-22109

    Observed 2026-10-30T17:32:25.512Z · upstream updated 2026-10-30T16:34:28.556Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T16:34:13.914631Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.