CVE-2026-27849
Critical OS command injection in TLS-SRP update for mesh devices.
Is CVE-2026-27849 being exploited?
Not confirmed. CVE-2026-27849 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.31% probability of exploitation in the next 30 days.
How severe is CVE-2026-27849?
CVE-2026-27849 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-27849?
Yes. A fix has been recorded for CVE-2026-27849. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-27849 affect?
CVE-2026-27849 affects MR9600 1.0.4.205530, MX4200 1.0.13.210200. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-27849?
Monitor vendor patch; apply firmware update when released; restrict update access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via the update path; commands could be executed on affected devices.
Monitor only
- affected1.0.4.205530
- affected1.0.13.210200
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.