HOMEVULNERABILITIESCVE-2021-45649
MEDIUM

CVE-2021-45649

CWE-200Published: December 26, 2021· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects R6400v2 before 1.0.4.84, R6700v3 before 1.0.4.84, R7000 before 1.0.11.126, R6900P before 1.3.2.126, and R7000P before 1.3.2.126.

NVD Source

Technical Analysis

CVE-2021-45649 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low 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), with a CVSS base score of 5.5.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

netgear10 product(s)
r6400v2 firmwarer6400v2r6700v3 firmwarer6700v3r7000 firmwarer7000r6900p firmwarer6900pr7000p firmwarer7000p
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

PATCHhttps://kb.netgear.com/000064073/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-PSV-2019-0123
PATCHhttps://kb.netgear.com/000064073/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-PSV-2019-0123

All References (2)

→
https://kb.netgear.com/000064073/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-PSV-2019-0123Patch · Vendor Advisory
→
https://kb.netgear.com/000064073/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-PSV-2019-0123Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2021-45649
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
Affected1 vendor(s)
PublishedDec 26, 2021

Related CVEs (CWE-200)

CVE-2025-61481
10.0
CVE-2020-13702
10.0
CVE-2008-1252
10.0
CVE-2013-0693
10.0
CVE-2025-29270
10.0
CVE-2017-2320
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-45649 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.
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