by Kastro
Paper/Archive/CVE-2026-27849

CVE-2026-27849

Linksys MR9600 — Missing neutralization in Linksys MR9600, Linksys MX4200

EPSS 0.4%public exploitCVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 30.3.303 × 206.1Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Due to missing neutralization of special elements, OS commands can be injected via the update functionality of a TLS-SRP connection, which is normally used for configuring devices inside the mesh network. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

Affected

ProductAffectedFixed inSource
MR96001.0.4.205530–CNA
MX42001.0.13.210200–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupsyss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-011.txt