Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-45557

22
FAUCET Score

CVE-2021-45557 describes a high-severity command injection vulnerability (CWE-77) affecting numerous NETGEAR network devices. An authenticated attacker can exploit this flaw remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While the EPSS score is low and there's no evidence of active exploitation or public exploit code, the potential impact is significant. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.8.2CPE matchmatch criteria
cpe:2.3:o:netgear:gc108p_firmware:*:*:*:*:*:*:*:*
< 1.0.8.2CPE matchmatch criteria
cpe:2.3:o:netgear:gc108pp_firmware:*:*:*:*:*:*:*:*
< 7.0.7.2CPE matchmatch criteria
cpe:2.3:o:netgear:gs108tv3_firmware:*:*:*:*:*:*:*:*
< 7.0.7.2CPE matchmatch criteria
cpe:2.3:o:netgear:gs110tpv3_firmware:*:*:*:*:*:*:*:*
< 7.0.7.2CPE matchmatch criteria
cpe:2.3:o:netgear:gs110tpp_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 63rd percentile among its peer group of 17,844 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 / 000064164/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Switches-PSV-2021-0167
PatchVendor Advisory