CVE-2019-20697

Unauthenticated service interruption via stack overflow

Published Apr 16, 2020 · Updated Aug 5, 2024

Stack-based buffer overflow in five NETGEAR switch models allows attackers on an adjacent network to interrupt service. NETGEAR has not disclosed the affected request, processing routine, or operation that overruns the stack buffer. No authentication is required, and affected firmware is before 6.0.0.48 on GS728TPPv2, GS728TPv2, GS752TPP, and GS752TPv2 and before 1.0.1.4 on GS750E.

CVSS severity8.8
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in five NETGEAR switch models allows attackers on an adjacent network to interrupt service. NETGEAR has not disclosed the affected request, processing routine, or operation that overruns the stack buffer. No authentication is required, and affected firmware is before 6.0.0.48 on GS728TPPv2, GS728TPv2, GS752TPP, and GS752TPv2 and before 1.0.1.4 on GS750E.

The record

CVE
CVE-2019-20697
Published
Apr 16, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 16, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

8.8NETGEARCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H

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

T1499.004Endpoint Denial of Service: Application or System Exploitation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo