CVE-2017-5521An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R8000 devices.
Updated under an hour ago ()
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It affects netgear r6200_firmware and 12 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Sep 8, 2022; federal agencies had to remediate by Sep 29, 2022. Treat that date as your deadline.
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An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R8000 devices. They are prone to password disclosure via simple crafted requests to the web management server. The bug is exploitable remotely if the remote management option is set, and can also be exploited given access to the router over LAN or WLAN. When trying to access the web panel, a user is asked to authenticate; if the authentication is canceled and password recovery is not enabled, the user is redirected to a page that exposes a password recovery token. If a user supplies the correct token to the page /passwordrecovered.cgi?id=TOKEN (and password recovery is not enabled), they will receive the admin password for the router. If password recovery is set the exploit will fail, as it will ask the user for the recovery questions that were previously set when enabling that feature. This is persistent (even after disabling the recovery option, the exploit will fail) because the router will ask for the security questions.
- CVSS
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Added to CISA KEV Sep 8, 2022; federal remediation due Sep 29, 2022Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.
- EPSS (exploitation in the next 30 days)
- 89.35% (percentile 100)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
netgear r6200_firmware netgear:r6200_firmware | 1.0.1.56_1.0.43 | NVD |
netgear r6300_firmware netgear:r6300_firmware | 1.0.2.78_1.0.58 | NVD |
netgear vegn2610_firmware netgear:vegn2610_firmware | 1.0.0.36 | NVD |
netgear ac1450_firmware netgear:ac1450_firmware | 1.0.0.34_10.0.16 | NVD |
netgear wnr1000v3_firmware netgear:wnr1000v3_firmware | 1.0.2.68_60.0.93 | NVD |
netgear wndr3700v3_firmware netgear:wndr3700v3_firmware | 1.0.0.40_1.0.32 | NVD |
netgear wndr4000_firmware netgear:wndr4000_firmware | 1.0.2.4_9.1.86 | NVD |
netgear wndr4500_firmware netgear:wndr4500_firmware | 1.0.1.44_1.0.73 | NVD |
netgear d6400_firmware netgear:d6400_firmware | 1.0.0.44 | NVD |
netgear d6220_firmware netgear:d6220_firmware | 1.0.0.12 | NVD |
netgear d6300_firmware netgear:d6300_firmware | 1.0.0.96 | NVD |
netgear d6300b_firmware netgear:d6300b_firmware | 1.0.0.40 | NVD |
netgear dgn2200bv4_firmware netgear:dgn2200bv4_firmware | 1.0.0.68 | NVD |
References
- https://www.exploit-db.com/exploits/41205/exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerabilityx-refsource-confirm, vendor-advisory
- http://www.securityfocus.com/bid/95457vdb-entry, x-refsource-bid, broken-link, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-5521us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.