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CVE-2017-5521· NVD / CVE Program· CNA mitre

An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R80

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.

HighCVSS 8.1 · v3.1KEVWeaponized No fix recorded
Published
Jan 17, 2017
Updated
Jun 16, 2026
EPSS
89.2% · 100th percentile
CWE
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JSON

Action score

89

Now

Patch today or shut off access.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
30 / 30 · Listed
EPSS
27 / 30 · 89.2%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Sep 8, 2022. That signals real attacks, not theory.

Remediation deadline for government agencies: Sep 29, 2022.

Affected systems

VendorProduct
netgearr6200 firmware
netgearr6200
netgearr6300 firmware
netgearr6300
netgearvegn2610 firmware
netgearvegn2610
netgearac1450 firmware
netgearac1450
netgearwnr1000v3 firmware
netgearwnr1000v3
netgearwndr3700v3 firmware
netgearwndr3700v3

and 14 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • netgear ac1450 firmware1.0.0.34_10.0.16
  • netgear d6220 firmware1.0.0.12
  • netgear d6300 firmware1.0.0.96
  • netgear d6300b firmware1.0.0.40
  • netgear d6400 firmware1.0.0.44
  • netgear dgn2200bv4 firmware1.0.0.68
  • netgear r6200 firmware1.0.1.56_1.0.43
  • netgear r6300 firmware1.0.2.78_1.0.58
  • netgear vegn2610 firmware1.0.0.36
  • netgear wndr3700v3 firmware1.0.0.40_1.0.32
  • netgear wndr4000 firmware1.0.2.4_9.1.86
  • netgear wndr4500 firmware1.0.1.44_1.0.73
  • netgear wnr1000v3 firmware1.0.2.68_60.0.93

Other highest-scoring records for the same primary product.

  • CVE-2022-30078NETGEAR R6200_V2 firmware versions through R6200v2-V1.0.3.12_10.1.11 and R6300_V2 firmware versions through R6300v2-V1.0.4.52_10.0.93 allow
    36Monitor
  • CVE-2017-18799Certain NETGEAR devices are affected by incorrect configuration of security settings.
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×1
  • Nuclei detection template ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrywebapps2017-01-30
Metasploit moduleauxiliary/gather/netgear_password_disclosureNETGEAR Administrator Password Disclosureauxiliary—
Nuclei detection templateNuclei template CVE-2017-5521 —

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+13 d
  3. CISA KEV+2060 d
  4. TodaySep 30, 2026+3543 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

All records