CVE-2026-35018
Authenticated root RCE on NetComm NF20MESH routers via crafted username JSON.
Is CVE-2026-35018 being exploited?
Not confirmed. CVE-2026-35018 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 1.3% probability of exploitation in the next 30 days.
How severe is CVE-2026-35018?
CVE-2026-35018 is rated High with a CVSS score of 8.7. 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-2026-35018?
Yes. A fix has been recorded for CVE-2026-35018. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-35018 affect?
CVE-2026-35018 affects NetComm NF20MESH routers (firmware <= R6B031). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-35018?
Monitor devices; disable remote management; plan firmware upgrade when patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can run arbitrary root commands via unsanitized username input, enabling full device compromise.
Monitor only
- affected< R6B032
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.