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CVE-2021-45554

22
FAUCET Score

CVE-2021-45554 is a command injection vulnerability affecting several NETGEAR router models, including the R6400, R6400v2, R6700v3, R7000, R6900P, R7000P, and R8000, allowing an authenticated user to execute arbitrary commands. With a CVSS score of 6.8 (Medium), this vulnerability requires authenticated access and local network proximity (AV:A, PR:H) but can lead to high impact on confidentiality, integrity, and availability (C:H, I:H, A:H). There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.1.74CPE matchmatch criteria
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
< 1.0.4.118CPE matchmatch criteria
cpe:2.3:o:netgear:r6400v2_firmware:*:*:*:*:*:*:*:*
< 1.0.4.118CPE matchmatch criteria
cpe:2.3:o:netgear:r6700v3_firmware:*:*:*:*:*:*:*:*
< 1.0.11.126CPE matchmatch criteria
cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
< 1.3.3.140CPE matchmatch criteria
cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.4HIGH

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.7
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 51st percentile among its peer group of 399 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.netgear.com / 000064119/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2020-0187
PatchVendor Advisory