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NVD / CVE Program· CNA CERTVDE

CVE-2022-4098: Wiesemann & Theis: Multiple products prone to missing authentication through spoofing

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.34% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: Wiesemann & Theis Com-Server ++ 1.55; Wiesemann & Theis Com-Server 20mA 1.55; Wiesemann & Theis Com-Server Highspeed 100BaseFX 1.78.

Low priority for now. Upgrade to Wiesemann & Theis Com-Server ++ 1.55; Wiesemann & Theis Com-Server 20mA 1.55; Wiesemann & Theis Com-Server Highspeed 100BaseFX 1.78 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Multiple Wiesemann&Theis products of the ComServer Series are prone to an authentication bypass through IP spoofing. After a user logged in to the WBM of the Com-Server an unauthenticated attacker in the same subnet can obtain the session ID and through IP spoofing change arbitrary settings by crafting modified HTTP Get requests. This may result in a complete takeover of the device.

HighCVSS 8.0 · v3.1—No exploit Fix available
Published
Dec 13, 2022
Updated
Jun 17, 2026
EPSS
0.3% · 27th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · CERTVDE
8.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-4098

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
wutcom-server \+\+ firmware
wutcom-server \+\+
wutcom-server 20ma firmware
wutcom-server 20ma
wutcom-server highspeed 100basefx firmware
wutcom-server highspeed 100basefx
wutcom-server highspeed 100baselx firmware
wutcom-server highspeed 100baselx
wutcom-server highspeed 19\" 1port firmware
wutcom-server highspeed 19\" 1port
wutcom-server highspeed 19\" 4port firmware
wutcom-server highspeed 19\" 4port

and 20 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • wut com-server ++ firmwarebefore 1.55
  • wut com-server 20ma firmwarebefore 1.55
  • wut com-server highspeed 100basefx firmwarebefore 1.78
  • wut com-server highspeed 100baselx firmwarebefore 1.78
  • wut com-server highspeed 19" 1port firmwarebefore 1.78
  • wut com-server highspeed 19" 4port firmwarebefore 1.78
  • wut com-server highspeed compact firmwarebefore 1.78
  • wut com-server highspeed industry firmwarebefore 1.78
  • wut com-server highspeed isolated firmwarebefore 1.78
  • wut com-server highspeed lc firmwarebefore 1.55
  • wut com-server highspeed oem firmwarebefore 1.78
  • wut com-server highspeed office 1port firmwarebefore 1.78
  • wut com-server highspeed office 4port firmwarebefore 1.78
  • wut com-server highspeed poe 3x isolated firmwarebefore 1.55
  • wut com-server highspeed poe firmwarebefore 1.78
  • wut com-server highspeed ul firmwarebefore 1.55

Versions reported by the vendor

Affected version ranges reported by the assigning authority (CERTVDE). Independent of NVD's CPE analysis and usually ahead of it.

  • Wiesemann & Theis Com-Server ++

    • before 1.55affected · semver

  • Wiesemann & Theis Com-Server 20mA

    • before 1.55affected · semver

  • Wiesemann & Theis Com-Server Highspeed 100BaseFX

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed 100BaseLX

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed 19" 1Port

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed 19" 4Port

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed Compact

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed Industry

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed Isolated

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed OEM

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed Office 1 Port

    • before 1.78affected · semver

  • Wiesemann & Theis Com-Server Highspeed Office 4 Port

    • before 1.78affected · semver

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Wiesemann & Theis Com-Server ++1.55Vendor (CNA)
Wiesemann & Theis Com-Server 20mA1.55Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed 100BaseFX1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed 100BaseLX1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed 19" 1Port1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed 19" 4Port1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed Compact1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed Industry1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed Isolated1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed OEM1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed Office 1 Port1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed Office 4 Port1.78Vendor (CNA)
Wiesemann & Theis Com-Server Highspeed PoE1.78Vendor (CNA)
Wiesemann & Theis Com-Server LC1.55Vendor (CNA)
Wiesemann & Theis Com-Server PoE 3 x Isolated1.55Vendor (CNA)
Wiesemann & Theis Com-Server UL1.55Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-290 · Authentication Bypass by Spoofing

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records