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CVE-2018-21099

25
FAUCET Score

CVE-2018-21099 describes a command injection vulnerability affecting NETGEAR R7800 devices running firmware versions prior to 1.0.2.60. An authenticated attacker on the local network can exploit this flaw to execute arbitrary commands on the device. With a CVSS score of 8.0 (High), this vulnerability poses a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is no evidence of active exploitation or significant community discussion, the potential for a sophisticated attacker to leverage this flaw remains.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.2.60CPE matchmatch criteria
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.6HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 61st percentile among its peer group of 554 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 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 / 000060451/Security-Advisory-for-Post-Authentication-Command-Injection-on-R7800-PSV-2018-0384
Vendor Advisory