CVE-2026-8173

mediumpriority · track · 21EPSS 0.003 · 27 %ileDE
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.34% (27th) EPSS
CVSS 5.3 · medium
Is it mine?
69 products
Check your exposure
Who says so?
1 sources
murrelektronik_psirt

EPSS · scored 2026-10-23

The web GUI of affected Murrelektronik Xelity switches logs MAC addresses from the devices MAC address table when an authenticated administrator uses the 'Copy learned MAC Addresses' function. Due to improper generation of error messages, an unauthenticated attacker with network access to the web interface can retrieve the logged MAC addresses via browser developer tools.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedmurrelektronik_psirt

    Update the affected Xelity switches to firmware version V2.1.1 or later. This firmware version removes the syslog error that caused the MAC address table contents to be written to a web-accessible log.

    https://shop.murrelektronik.de/
  • Mitigationmurrelektronik_psirt

    * Until the firmware update can be deployed, restart the affected Xelity switches after any administrator has used the 'Copy learned MAC Addresses' function in the web GUI. Restarting the device clears the log, removing the leaked MAC addresses from the web-accessible output. Alternatively, avoid using the 'Copy learned MAC Addresses' function on devices that have unauthenticated network exposure of their web interface. * Restrict network access to the web management interface (TCP 80/443) of the affected Xelity switches to authorized management stations only, via firewall ACLs or by placing the switches in a dedicated management VLAN. This prevents unauthenticated attackers from reaching the web interface to retrieve the leaked log content.

02

cvss

Technical severity, 0–10. One row per scoring source.

5.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.3

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · info@cert.vde.comexploitability 3.9 · impact 1.4
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · Murrelektronik PSIRT
v4.05.3mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/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:Xsecondary · info@cert.vde.com
v4.01.3lowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-209USCWE-209US
05

affected products (69)

Products and version ranges known to be affected.

showing 20 of 69
06

advisories (1)

Vendor and ecosystem advisories describing this.

  • VDE-2026-061Murrelektronik: Vulnerability in 'Copy learned MAC Addresses' function enables MAC Spoofing on Xelity Switches2026-08-24csaf · murrelektronik_psirtDE

    An information disclosure vulnerability in the web GUI of Murrelektronik Xelity switches causes MAC addresses from the device's MAC address table to be written into a server-side log that is exposed via the device's web interface to unauthenticated users. The leak is triggered when an authenticated administrator invokes the 'Copy learned MAC Addresses' function, which causes a syslog error that inserts the affected MAC addresses into the log output. Once the error has been triggered, any unauthenticated attacker with network access to the web interface can retrieve the leaked MAC addresses via common browser developer tools. The vulnerable functionality was introduced in version 2.1.0 and is fixed in version 2.1.1.

07

sources

Which sources assert this record, and when.

murrelektronik_psirtNVDCVE.orgMITRE
published 2026-08-24modified 2026-09-03
08

references (1) nvd

External citations — patches, advisories, analysis.

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