CVE-2026-27847: Linksys MR9600 · SQL Injection
Affects Linksys MR9600Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 30 Oct 2026, 06:59 UTC
Contested
Critical score, yet low EPSS after six months- EPSS
- 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinksysMR9600 | Affected
| Fixed in– |
| LinksysMX4200 | Affected
| Fixed in– |
AI-suggested
- Immediate mitigation involves isolating affected devices from untrusted networks and restricting management access to trusted administrators only.
- Monitor network traffic for unusual TLS-SRP handshake attempts or anomalous authentication patterns that could indicate exploitation attempts.
- Employ network-level intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics targeting SQL injection and abnormal TLS-SRP traffic.
- Disable or limit TLS-SRP authentication if possible until patches are available.
- Regularly audit router configurations and logs for unauthorized changes or access attempts.
- Coordinate with Linksys for timely updates and apply patches as soon as they are released.
- Consider deploying network segmentation to limit the impact of compromised devices.
- Educate network administrators about this vulnerability and ensure incident response plans include steps for router compromise scenarios.
- Use multi-factor authentication and strong credential policies on network devices to reduce risk from credential injection.
- Maintain up-to-date asset inventories to quickly identify and remediate affected devices.
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.