HOMEVULNERABILITIESCVE-2021-45600
HIGH

CVE-2021-45600

CWE-77Published: December 26, 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 CBR750 before 4.6.3.6, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, and RBS850 before 3.2.17.12.

NVD Source

Technical Analysis

CVE-2021-45600 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

netgear8 product(s)
cbr750 firmwarecbr750rbk852 firmwarerbk852rbr850 firmwarerbr850rbs850 firmwarerbs850
Source: NVD CPE · 8 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

PATCHhttps://kb.netgear.com/000064146/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0555
PATCHhttps://kb.netgear.com/000064146/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0555

All References (2)

→
https://kb.netgear.com/000064146/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0555Patch · Vendor Advisory
→
https://kb.netgear.com/000064146/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0555Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2021-45600
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-77
CISA KEVNo
Affected1 vendor(s)
PublishedDec 26, 2021

Related CVEs (CWE-77)

CVE-2015-1949
10.0
CVE-2015-1938
10.0
CVE-2015-3408
10.0
CVE-2013-2810
10.0
CVE-2014-9188
10.0
CVE-2015-1986
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-45600 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.
← All Vulnerabilities·Search for CVE-2021-45600·NVD