CVE-2020-8515 is a critical remote code execution vulnerability affecting DrayTek Vigor2960, Vigor3900, and Vigor300B devices, allowing unauthenticated attackers to execute commands as root via shell metacharacters in the cgi-bin/mainfunction.cgi URI. This vulnerability has a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. It is actively exploited in the wild, listed in CISA's KEV catalog, and has publicly available exploit code, including an ExploitDB entry and Nuclei templates. The high EPSS score, extensive community discussion, and significant media coverage further underscore its severe and widespread impact.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.3.1CPE matchmatch criteria | cpe:2.3:o:draytek:vigor2960_firmware:1.3.1:beta:*:*:*:*:*:* | ||
1.3.3CPE matchmatch criteria | cpe:2.3:o:draytek:vigor300b_firmware:1.3.3:beta:*:*:*:*:*:* | ||
1.4.2.1CPE matchmatch criteria | cpe:2.3:o:draytek:vigor300b_firmware:1.4.2.1:beta:*:*:*:*:*:* | ||
1.4.4CPE matchmatch criteria | cpe:2.3:o:draytek:vigor300b_firmware:1.4.4:beta:*:*:*:*:*:* | ||
1.4.4CPE matchmatch criteria | cpe:2.3:o:draytek:vigor3900_firmware:1.4.4:beta:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/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, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.