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CVE-2025-41772

wwwupdate.cgi Session token in URL

HIGH
7.5
CVSS Score
Published: March 9, 2026 at 08:18 AM UTC
Updated: June 17, 2026 at 09:23 AM UTC
4 products affected across 2 vendorsUniversal Bacnet Router FirmwareUBR-02UBR-01 Mk II

Using UBR-01 Mk II by MBS?

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

An unauthenticated remote attacker can obtain valid session tokens because they are exposed in plaintext within the URL parameters of the wwwupdate.cgi endpoint in UBR.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Universal Bacnet Router Firmware· Mbs Solutions
95%
v < 6.0.1.0
mbs-solutions-ubr-01-mk-ii (environment) · mbs-solutions-ubr-02 (environment) · mbs-solutions-ubr-lon (environment)
UBR-01 Mk II· Mbs
60%
0.0.0 ≤ v < 6.0.1.00.0.0
Affected range stops below 6.0.1.0, so it looks safe — our inference, not a vendor statement
UBR-02· Mbs
60%
0.0.0 ≤ v < 6.0.1.00.0.0
Affected range stops below 6.0.1.0, so it looks safe — our inference, not a vendor statement
UBR-LON· Mbs
60%
0.0.0 ≤ v < 6.0.1.00.0.0
Affected range stops below 6.0.1.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://www.mbs-solutions.de/mbs-2025-0001

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCERTVDE
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-598

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