HOMEVULNERABILITIESCVE-2019-20697
HIGH

CVE-2019-20697

CWE-787Published: April 16, 2020· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects GS728TPPv2 before 6.0.0.48, GS728TPv2 before 6.0.0.48, GS750E before 1.0.1.4, GS752TPP before 6.0.0.48, and GS752TPv2 before 6.0.0.48.

NVD Source

Technical Analysis

CVE-2019-20697 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netgear10 product(s)
gs728tpp firmwaregs728tppgs728tp firmwaregs728tpgs750e firmwaregs750egs752tpp firmwaregs752tppgs752tp firmwaregs752tp
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://kb.netgear.com/000061232/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Switches-PSV-2019-0066
ADVISORYhttps://kb.netgear.com/000061232/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Switches-PSV-2019-0066

All References (2)

→
https://kb.netgear.com/000061232/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Switches-PSV-2019-0066Vendor Advisory
→
https://kb.netgear.com/000061232/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Switches-PSV-2019-0066Vendor Advisory

Quick Facts

CVE IDCVE-2019-20697
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedApr 16, 2020

Related CVEs (CWE-787)

CVE-2002-2227
10.0
CVE-2016-9343
10.0
CVE-2015-0235
10.0
CVE-2004-0574
10.0
CVE-2011-1807
10.0
CVE-2018-2913
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-20697 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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