CVE-2019-20654

Credential guessing via unrestricted login attempts

Published Apr 15, 2020 · Updated Aug 5, 2024

Missing login rate limiting in NETGEAR WAC505 and WAC510 before 8.0.6.4 allows remote attackers to perform unrestricted credential guessing. NETGEAR's release notes identify a login form that accepts repeated authentication attempts without enforcing a request limit or backoff. Attackers must be adjacent to the wireless network, and a correct guess exposes account-protected information without reported integrity or availability impact.

CVSS severity4.3
Medium
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing login rate limiting in NETGEAR WAC505 and WAC510 before 8.0.6.4 allows remote attackers to perform unrestricted credential guessing. NETGEAR's release notes identify a login form that accepts repeated authentication attempts without enforcing a request limit or backoff. Attackers must be adjacent to the wireless network, and a correct guess exposes account-protected information without reported integrity or availability impact.

The record

CVE
CVE-2019-20654
Published
Apr 15, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1110.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3NETGEARCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1110.001Password Guessing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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