by Kastro
Paper/Archive/CVE-2026-3356

CVE-2026-3356

Anritsu Remote Spectrum Monitor MS27100A — Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor

EPSS 0.4%CVSS 9.3
critical.is priorityof 100
35
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 34.5.345 × 206.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Remote Spectrum Monitor MS27100AAll versions–CNA
Remote Spectrum Monitor MS27101AAll versions–CNA
Remote Spectrum Monitor MS27102AAll versions–CNA
Remote Spectrum Monitor MS27103AAll versions–CNA

Scores by source

icscert (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refcisa.gov/news-events/ics-advisories/icsa-26-090-01