CVE-2026-3356

Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor

Published Mar 31, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.

Remediation

Vendor Workaround

Anritsu has no plans to fix this issue. Anritsu recommends that users deploy Remote Spectrum Monitor within secure network environments to mitigate potential risks. Users can contact Anritsu Technical Support (1-800-267-4878) for more information.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Anritsu
Anritsu remote Spectrum Monitor Ms27100a
Anritsu remote Spectrum Monitor Ms27101a
Anritsu remote Spectrum Monitor Ms27102a
Anritsu remote Spectrum Monitor Ms27103a
Vendors & Products Anritsu
Anritsu remote Spectrum Monitor Ms27100a
Anritsu remote Spectrum Monitor Ms27101a
Anritsu remote Spectrum Monitor Ms27102a
Anritsu remote Spectrum Monitor Ms27103a
Type Values Removed Values Added
Description The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.
Title Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Apr 1, 2026, 1:43 PM
Reserved
Feb 27, 2026, 6:08 PM
Status
Awaiting Analysis
Published
Mar 31, 2026, 7:16 PM
Modified
Jul 24, 2026, 8:10 PM