CASCACascade Atlas

Evidence dossier

CVE-2017-5521

CVE-2017-5521

69.6–94.1Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Jan 17, 2017
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

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

FIRST EPSS89.29%

2026-07-18 · v2026.06.15 · percentile 99.8%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

mitreoriginal assertion
container

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.

CISA KEVoriginal assertion
observed_exploitation

NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.892940000000; percentile 0.997660000000

Applicability

Cited product scope

Trace impact →
n/an/a
[{"status": "affected", "version": "n/a"}]unknown
Unknown vendorUnknown product
cpe:2.3:h:netgear:ac1450:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:d6220:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:d6300:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:d6300b:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:d6400:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:dgn2200bv4:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:r6200:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:r6300:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:vegn2610:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:wndr3700v3:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:wndr4000:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:wndr4500:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:netgear:wnr1000v3:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:netgear:ac1450_firmware:1.0.0.34_10.0.16:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:d6220_firmware:1.0.0.12:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:d6300b_firmware:1.0.0.40:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:d6300_firmware:1.0.0.96:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:d6400_firmware:1.0.0.44:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:dgn2200bv4_firmware:1.0.0.68:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:r6200_firmware:1.0.1.56_1.0.43:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:r6300_firmware:1.0.2.78_1.0.58:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:vegn2610_firmware:1.0.0.36:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:wndr3700v3_firmware:1.0.0.40_1.0.32:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:wndr4000_firmware:1.0.2.4_9.1.86:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:wndr4500_firmware:1.0.1.44_1.0.73:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:netgear:wnr1000v3_firmware:1.0.2.68_60.0.93:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

8.1
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
4.3
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:M/Au:N/C:P/I:N/A:N
8.1
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.