CVE-2021-21913 is a critical information disclosure vulnerability affecting the WiFi Smart Mesh functionality of D-LINK DIR-3040 1.13B03 routers. It allows for unauthenticated remote command execution by connecting to the device's MQTT service. With a CVSS score of 9.8 (CRITICAL), this vulnerability poses a significant risk due to its network-based attack vector, low 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 high severity warrants immediate attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.13b03CPE matchmatch criteria | cpe:2.3:o:dlink:dir-3040_firmware:1.13b03:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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.
No media coverage found for this CVE.
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.