CVE-2018-21135 describes a stack-based buffer overflow vulnerability affecting several NETGEAR router models, including the R6700, R7500, and WNDR series, prior to specific firmware versions. This flaw can be exploited by an authenticated user. With a CVSS score of 7.2 (HIGH), the vulnerability allows for high impact to confidentiality, integrity, and availability, requiring high privileges for exploitation. There is currently no public exploit code available in Metasploit, Nuclei, or ExploitDB, and it is not listed in CISA's KEV catalog. Community discussion and media coverage for this CVE are minimal, indicating a lack of widespread attention or active exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.1.48CPE matchmatch criteria | cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.0.124CPE matchmatch criteria | cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.2.58CPE matchmatch criteria | cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.4.2CPE matchmatch criteria | cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.4.2CPE matchmatch criteria | cpe:2.3:o:netgear:r9000_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.