CVE-2026-4197 is a critical command injection vulnerability affecting numerous D-Link DNS and DNR network-attached storage (NAS) devices, specifically within the /cgi-bin/download_mgr.cgi file's RSS-related functions. Rated with a CVSS score of 9.8 (Critical), this vulnerability allows an unauthenticated, remote attacker to execute arbitrary commands with high impact on confidentiality, integrity, and availability, requiring no user interaction. The attack complexity is low, making it easily exploitable. Although not currently listed on CISA's KEV catalog, public exploit code exists, making these devices susceptible to immediate compromise. Despite the public exploit, current community discussion and media coverage remain low.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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.