HOMEVULNERABILITIESCVE-2021-38519
HIGH

CVE-2021-38519

CWE-77Published: August 11, 2021· Updated: Jun 17, 2026

7.2
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R6250 before 1.0.4.36, R6300v2 before 1.0.4.36, R6400 before 1.0.1.50, R6400v2 before 1.0.2.66, R6700v3 before 1.0.2.66, R6700 before 1.0.2.8, R6900 before 1.0.2.8, R7000 before 1.0.9.88, R6900P before 1.3.2.132, R7100LG before 1.0.0.52, R7900 before 1.0.3.10, R8000 before 1.0.4.46, R7900P before 1.4.1.50, R8000P before 1.4.1.50, and RAX80 before 1.0.1.40.

NVD Source

Technical Analysis

CVE-2021-38519 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 7.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netgear27 product(s)
r6250 firmwarer6250r6300 firmwarer6300r6400 firmwarer6400r6400v2 firmwarer6700 firmwarer6700r6900 firmwarer6900r7000 firmware+15
Source: NVD CPE · 29 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2021-38519
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-77
CISA KEVNo
Affected1 vendor(s)
PublishedAug 11, 2021

Related CVEs (CWE-77)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-38519 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.COM. CVE data is provided under the NVD usage policy.