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Vulnerabilities

Vulnerability · CVE-2017-5521

NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability

Published Jan 17, 2017 · catalog updated Jun 16, 2026 · NETGEAR Multiple Devices

Patch now

CVE-2017-5521 is in the CISA known-exploited catalog, due Sep 29, 2022. Confirm NETGEAR Multiple Devices against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High8.1
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
89.24%
Remediation
Remediation guidance
Affected products
cpe netgear/ac1450 firmware · cpe netgear/d6220 firmware · cpe netgear/d6300 firmware · cpe netgear/d6300b firmware · cpe netgear/d6400 firmware · cpe netgear/r6200 firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe netgear/ac1450 firmware1.0.0.34_10.0.16
  • cpe netgear/d6220 firmware1.0.0.12
  • cpe netgear/d6300 firmware1.0.0.96
  • cpe netgear/d6300b firmware1.0.0.40
  • cpe netgear/d6400 firmware1.0.0.44
  • cpe netgear/r6200 firmware1.0.1.56_1.0.43
  • cpe netgear/r6300 firmware1.0.2.78_1.0.58
  • cpe netgear/vegn2610 firmware1.0.0.36
  • cpe netgear/wndr3700v3 firmware1.0.0.40_1.0.32
  • cpe netgear/wndr4000 firmware1.0.2.4_9.1.86
  • cpe netgear/wndr4500 firmware1.0.1.44_1.0.73
  • cpe netgear/wnr1000v3 firmware1.0.2.68_60.0.93
  • vendor NETGEAR Multiple Devicesversion unspecified

How to fix CVE-2017-5521

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2017-5521 is in the CISA known-exploited catalog, due Sep 29, 2022. Confirm NETGEAR Multiple Devices against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with netgear/ac1450 firmware 1.0.0.34_10.0.16; netgear/d6220 firmware 1.0.0.12; netgear/d6300 firmware 1.0.0.96; netgear/d6300b firmware 1.0.0.40. Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information. EPSS 89.24%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 17, 2017 · Catalog

    Detected

    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 tryi

  2. Sep 8, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.

  3. Sep 29, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.

  4. Jun 16, 2026 · Catalog

    Updated

    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 tryi

Sources

  • CISA KEVConfirmed exploitationCVE-2017-5521

    Multiple NETGEAR devices are prone to admin password disclosure via simple crafted requests to the web management server.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2017-5521

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-5521

    30-day exploitation probability 89.2%

    first.org
  • Exploit DatabasePublic exploit reference41205

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit ModulesPublic exploit moduleauxiliary_gather/netgear_password_disclosure

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2017-5521

    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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2017-5521

    Multiple NETGEAR devices are prone to admin password disclosure via simple crafted requests to the web management server.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.