CVE-2021-27253 is a critical vulnerability affecting NETGEAR Nighthawk R7800 routers, allowing network-adjacent attackers to execute arbitrary code as root. Despite requiring authentication, the existing mechanism can be bypassed, enabling exploitation through improper validation of the rc_service parameter in apply_bind.cgi. With a CVSS score of 8.8 (High), this flaw presents a significant risk due to its low attack complexity and complete compromise potential. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low immediate threat of widespread attacks.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.10.0.5CPE matchmatch criteria | cpe:2.3:o:netgear:br200_firmware:*:*:*:*:*:*:*:* | ||
< 5.10.0.5CPE matchmatch criteria | cpe:2.3:o:netgear:br500_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.1.60CPE matchmatch criteria | cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.1.98CPE matchmatch criteria | cpe:2.3:o:netgear:ex6100v2_firmware:*:*:*:*:*:*:*:* | ||
< 1.0.1.98CPE matchmatch criteria | cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.