CVE-2026-27850
Last modified
CVE-2026-27850 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-27850?
How severe is CVE-2026-27850?
How do I fix CVE-2026-27850?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-27844Uncaught Exception (CWE-248) in the Controller 6000 and Cont…2.7
- CVE-2026-27846Due to missing authentication, a user with physical access t…6.2
- CVE-2026-27847Due to improper neutralization of special elements, SQL stat…9.8
- CVE-2026-27848Due to missing neutralization of special elements, OS comman…9.8
- CVE-2026-27849Due to missing neutralization of special elements, OS comman…9.8
- CVE-2026-2785Invalid pointer in the JavaScript Engine component. This vul…9.8
- CVE-2026-27851When safe filter is used with variable expansion, all follow…9.1
- CVE-2026-27853An attacker might be able to trigger an out-of-bounds write …7.5
- CVE-2026-27854An attacker might be able to trigger a use-after-free by sen…7.5
- CVE-2026-27855Dovecot OTP authentication is vulnerable to replay attack un…5.9
- CVE-2026-27856Doveadm credentials are verified using direct comparison whi…5.9
- CVE-2026-27857Sending "NOOP (((...)))" command with 4000 parenthesis open+…7.5
Are you affected by CVE-2026-27850?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST