CVE-2018-21156 is a buffer overflow vulnerability affecting numerous NETGEAR router and extender models, including the D6220, R7000, and EX6100 series, among others, across various firmware versions. This high-severity flaw (CVSS 7.2) allows an authenticated user to execute arbitrary code or cause a denial of service. The attack vector is network-based with low attack complexity, requiring high privileges for exploitation, and can lead to high impact on confidentiality, integrity, and availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.0.38CPE matchmatch criteria | cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.0.74CPE matchmatch criteria | cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.0.74CPE matchmatch criteria | cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.3.39CPE matchmatch criteria | cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.0.102CPE matchmatch criteria | cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub 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 records are not available for this CVE.