Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor
Priority MEDIUM 48CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00402 34th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Anritsu | Remote Spectrum Monitor MS27100A | All versions | — | No fix listed | CNA |
| Anritsu | Remote Spectrum Monitor MS27101A | All versions | — | No fix listed | CNA |
| Anritsu | Remote Spectrum Monitor MS27102A | All versions | — | No fix listed | CNA |
| Anritsu | Remote Spectrum Monitor MS27103A | All versions | — | No fix listed | CNA |
- Remote Spectrum Monitor MS27100A VendorAnritsu Affected All versions Fixed in — No fix listed CNA
- Remote Spectrum Monitor MS27101A VendorAnritsu Affected All versions Fixed in — No fix listed CNA
- Remote Spectrum Monitor MS27102A VendorAnritsu Affected All versions Fixed in — No fix listed CNA
- Remote Spectrum Monitor MS27103A VendorAnritsu Affected All versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3356
- 2026-10-03 Alias added: GHSA-9c77-73hr-45rf
References
More Anritsu vulnerabilities
- TI-2025-07295 Path traversal in Anritsu ShockLine CVSS 3.0HIGH 7.8
- TI-2025-14004 Deserialization of untrusted data in Anritsu VectorStar CVSS 3.0HIGH 7.8
- TI-2025-14003 Deserialization of untrusted data in Anritsu VectorStar CVSS 3.0HIGH 7.8
- TI-2025-14001 Deserialization of untrusted data in Anritsu ShockLine CVSS 3.0HIGH 7.8
- TI-2025-14002 Race condition in Anritsu ShockLine CVSS 3.0HIGH 7.5
- TI-2025-07296 Deserialization of untrusted data in Anritsu ShockLine CVSS 3.0HIGH 7.8
Sources
- CVE-2026-3356 · CVE Program
- CVE-2026-3356 · NVD
- FIRST EPSS
- GHSA-9c77-73hr-45rf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences