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Critical 9.8Published Feb 25, 2026

CVE-2026-27847Missing authentication in Linksys MR9600, Linksys MX4200

Updated under an hour ago ()

Does this affect you?

It affects Linksys MR9600 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Due to improper neutralization of special elements, SQL statements can be injected via the handshake of a TLS-SRP connection. This can be used to inject known credentials into the database that can be utilized to successfully complete the handshake and use the protected service. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

CVSS
9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-89
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
ENISA
NVD analysis
Deferred
Record last updated
Feb 26, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linksys MR9600
linksys:mr9600 (from the name)
1.0.4.205530
CNA record
Linksys MX4200
linksys:mx4200 (from the name)
1.0.13.210200
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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