CVE-2026-27846 json
Missing authentication in Linksys MR9600, Linksys MX4200
published 2026-02-25 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-8648
- cvss
- 6.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Linksys MR9600
- Linksys MX4200
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
syss.de
/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt
third-party-advisory, technical-description
Sources
- CVE List CVE-2026-27846
- NVD CVE-2026-27846
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