CVE-2021-27255 is a critical authentication bypass vulnerability affecting NETGEAR R7800 firmware version 1.0.2.76. It allows unauthenticated remote attackers to execute arbitrary code with root privileges by exploiting the refresh_status.aspx endpoint. This vulnerability has a CVSS score of 8.8 (High) due to its low attack complexity and complete compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential for severe impact warrants attention.
| 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:ex6150v2_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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.