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CVE-2026-34023

Broken WebSocket authorization in Wertheim SafeController Software allows cross-branch access to restricted functions

High7.1EPSS 0.34%
Published
Updated
Reserved
Assigned by
SEC-VLab

Description

The Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains an incorrect authorization vulnerability in the WebSocket communication used by the SafeController WebMessageBroker. An authenticated attacker with valid low-privileged branch user credentials can manipulate WebSocket messages by specifying controller identifiers belonging to other branches. This allows the attacker to access restricted functions and resources in other branches, including activating boxes outside of the user's authorized branch.

Scores

CVSS scores of CVE-2026-34023, by who scored it
Scored byCVSSScoreVector
SEC-VLabCNA (assigner)4.0High7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
NVDNVD · Deferred4.0High7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.34% · top 73% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Weakness

Affected products

What to do

Solution: The vendor provides a patch which should be installed immediately. Specific fixed version information was not provided. Affected parties should contact the vendor to request the update.

Workaround: Restrict access to the SafeController web application and WebSocket interface to authorized users and trusted network locations only. Review user privileges and branch assignments. Monitor WebSocket activity for controller identifiers or branch identifiers that do not match the authenticated user's assigned branch. These measures should only be treated as interim risk reduction; the vendor-provided patch should be installed.

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .