PT-2026-25571 · D Link · Dnr-202L+38

Pjq123 · Published 2026-03-15 · Updated 2026-03-16 · CVE-2026-4196

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions D-Link DNS-120 D-Link DNR-202L D-Link DNS-315L D-Link DNS-320 D-Link DNS-320L D-Link DNS-320LW D-Link DNS-321 D-Link DNR-322L D-Link DNS-323 D-Link DNS-325 D-Link DNS-326 D-Link DNS-327L D-Link DNR-326 D-Link DNS-340L D-Link DNS-343 D-Link DNS-345 D-Link DNS-726-4 D-Link DNS-1100-4 D-Link DNS-1200-05 D-Link DNS-1550-04 versions prior to 20260205

Description A command injection issue exists in the cgi recovery/cgi backup now/cgi set schedule/cgi set rsync server function within the /cgi-bin/remote backup.cgi file. Remote attackers can manipulate this function to execute arbitrary commands. The exploit for this issue has been publicly disclosed.

Recommendations D-Link DNS-120: Update to a version beyond 20260205. D-Link DNR-202L: Update to a version beyond 20260205. D-Link DNS-315L: Update to a version beyond 20260205. D-Link DNS-320: Update to a version beyond 20260205. D-Link DNS-320L: Update to a version beyond 20260205. D-Link DNS-320LW: Update to a version beyond 20260205. D-Link DNS-321: Update to a version beyond 20260205. D-Link DNR-322L: Update to a version beyond 20260205. D-Link DNS-323: Update to a version beyond 20260205. D-Link DNS-325: Update to a version beyond 20260205. D-Link DNS-326: Update to a version beyond 20260205. D-Link DNS-327L: Update to a version beyond 20260205. D-Link DNR-326: Update to a version beyond 20260205. D-Link DNS-340L: Update to a version beyond 20260205. D-Link DNS-343: Update to a version beyond 20260205. D-Link DNS-345: Update to a version beyond 20260205. D-Link DNS-726-4: Update to a version beyond 20260205. D-Link DNS-1100-4: Update to a version beyond 20260205. D-Link DNS-1200-05: Update to a version beyond 20260205. D-Link DNS-1550-04: Update to a version beyond 20260205.

Exploit

Fix

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

CVE-2026-4196

Affected Products

Dnr-202L

Dnr-322L

Dnr-326

Dns-1100-4

Dns-120

Dns-1200-05

Dns-1550-04

Dns-315L

Dns-320

Dns-320L

Dns-321

Dns-323

Dns-325

Dns-326

Dns-327L

Dns-340L

Dns-343

Dns-345

Dns-726-4

Dnr-202L Firmware

Dnr-326 Firmware

Dns-1100-4 Firmware

Dns-1200-05 Firmware

Dns-120 Firmware

Dns-1550-04 Firmware

Dns-315L Firmware

Dns-320 Firmware

Dns-320L Firmware

Dns-320Lw Firmware

Dns-321 Firmware

Dns-322L Firmware

Dns-323 Firmware

Dns-325 Firmware

Dns-326 Firmware

Dns-327L Firmware

Dns-340L Firmware

Dns-343 Firmware

Dns-345 Firmware

Dns-726-4 Firmware

References · 11

• 🔥❌ https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_99/99.md · Exploit, Deleted
• 🔥❌ https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_98/98.md · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2026-4196 · Security Note
• https://vuldb.com/?submit.769857 · Note
• https://vuldb.com/?submit.769855 · Note
• https://vuldb.com/?submit.769858 · Note
• https://dlink.com · Note
• https://t.me/CVEtracker/47470 · Telegram Post
• https://vuldb.com/?ctiid.351108 · Note
• https://vuldb.com/?id.351108 · Note
• https://vuldb.com/?submit.769856 · Note