Is CVE-2026-27850 actively exploited?

No active exploitation of CVE-2026-27850 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27850 be exploited remotely?

Yes. CVE-2026-27850 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27850?

CVE-2026-27850 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.03%.

HOME VULNERABILITIESCVE-2026-27850

HIGH

CVE-2026-27850

Published: February 25, 2026· Updated: Feb 27, 2026

7.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.6th

Official Description

Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network.

This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

NVD Source

Technical Analysis

CVE-2026-27850 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.