Vulnerability · Published Feb 25, 2026 · Assigned by ENISA
CVE-2026-27847Missing authentication in Linksys MR9600, Linksys MX4200
Critical 9.8
In plain English
A critical-severity SQL injection in MR9600 from Linksys. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 69.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-009.txt third-party-advisory, technical-description