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CVE-2026-27848

Missing neutralization in Linksys MR9600, Linksys MX4200

Published: Feb 25, 2026Updated: Feb 27, 2026 Sources: CVE List NVDCWE-78
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.3%
Top 76.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

MR9600LinksysNetworking Infrastructure
MX4200LinksysNetworking Infrastructure
linksyscommercialUSNetworking Infrastructureaka linksys by cisco

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-010.txt
syss.de

Timeline

Published
Feb 25, 2026
Last Updated
Feb 27, 2026

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