Known exploited · NETGEAR
CVE-2017-5521: NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability
What it is
Multiple NETGEAR devices are prone to admin password disclosure via simple crafted requests to the web management server.
- Vendor
- NETGEAR
- Product
- Multiple Devices
- Added to KEV
- September 8, 2022
- CISA due date
- September 29, 2022
- Ransomware use
- Unknown
What CISA requires
Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.
Forensic triage
No
What to do now
- Find every instance of Multiple Devices you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before September 29, 2022 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
H2 Security
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.