CVE-2022-47209 — A support user exists on the device and appears to be a backdoor for Technical S

A support user exists on the device and appears to be a backdoor for Technical Support staff. The default password for this account is “support” and cannot be changed by a user via any normally accessible means.

01What is this vulnerability?

A support user exists on the device and appears to be a backdoor for Technical Support staff. The default password for this account is “support” and cannot be changed by a user via any normally accessible means.

02Affected products

Vendor	Product	Versions
n	a / NETGEAR Nighthawk WiFi6 Router	NETGEAR Nighthawk WiFi6 Router prior to V1.0.9.90

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-12-16T00:00:00.000Z
• Last modified: 2025-04-17T19:11:26.955Z

09References

• www.tenable.com — https://www.tenable.com/security/research/tra-2022-37