CVE-2021-45382 is a critical Remote Command Execution (RCE) vulnerability found in several D-Link DIR-series routers (810L, 820L/LW, 826L, 830L, 836L) across all hardware revisions, specifically within the DDNS function of the ncc2 binary. This vulnerability has a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and complete compromise potential (confidentiality, integrity, availability). It is actively exploited in the wild, as indicated by its presence in the KEV catalog and mentions in media coverage related to Mirai and Beastmode botnets, despite no public Metasploit or ExploitDB modules. The high EPSS score, FAUCET Risk Score, and significant community discussion further underscore its severe and widespread threat.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:dlink:dir-820l_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:dlink:dir-820lw_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:dlink:dir-826l_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:dlink:dir-830l_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:dlink:dir-836l_firmware:-:*:*:*:*:*:*:* |
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.