CVE-2026-4196 is a critical command injection vulnerability affecting numerous D-Link DNS and DNR series network-attached storage (NAS) devices, specifically within the cgi_recovery/cgi_backup_now/cgi_set_schedule/cgi_set_rsync_server functions of /cgi-bin/remote_backup.cgi. Rated 9.8 CRITICAL, this flaw allows an unauthenticated remote attacker to execute arbitrary commands with high impact on confidentiality, integrity, and availability, requiring no user interaction. While the exploit method has been publicly disclosed and may be used, there is currently no evidence of active exploitation, nor are there readily available exploit modules in common frameworks like Metasploit or ExploitDB. Community discussion and media coverage regarding this vulnerability are minimal, suggesting low public awareness despite its severity.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:* | ||
<= 2026-02-05CPE matchmatch criteria | cpe:2.3:o:dlink:dns-320lw_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.