What’s Vulnerable › Vulnerabilities

CVE-2026-4197: D-Link DNS-1550-04 download_mgr.cgi RSS_Item_List command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 19.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-16 · updated 2026-06-17
• Weakness: CWE-74

Description

A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected is the function RSS_Get_Update_Status/RSS_Update/RSS_Channel_AutoDownlaod/RSS_Add/RSS_Channel_Item_Downlaod/RSS_History_Item_List/RSS_Item_List of the file /cgi-bin/download_mgr.cgi. The manipulation results in command injection. The attack may be performed from remote. The exploit has been made public and could be used.

Affected products

• Dlink Dnr-202L Firmware: through 2026-02-05
• Dlink Dnr-326 Firmware: through 2026-02-05
• Dlink Dns-1100-4 Firmware: through 2026-02-05
• Dlink Dns-1200-05 Firmware: through 2026-02-05
• Dlink Dns-120 Firmware: through 2026-02-05
• Dlink Dns-1550-04 Firmware: through 2026-02-05
• Dlink Dns-315L Firmware: through 2026-02-05
• D-Link DNS-320: through 2026-02-05
• Dlink Dns-320L Firmware: through 2026-02-05
• Dlink Dns-320Lw Firmware: through 2026-02-05
• Dlink Dns-321 Firmware: through 2026-02-05
• Dlink Dns-322L Firmware: through 2026-02-05
• Dlink Dns-323 Firmware: through 2026-02-05
• Dlink Dns-325 Firmware: through 2026-02-05
• Dlink Dns-326 Firmware: through 2026-02-05
• Dlink Dns-327L Firmware: through 2026-02-05
• Dlink Dns-340L Firmware: through 2026-02-05
• D-Link DNS-343 ShareCenter: through 2026-02-05
• Dlink Dns-345 Firmware: through 2026-02-05
• Dlink Dns-726-4 Firmware: through 2026-02-05

References

• https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_102/102.md
• https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_103/103.md
• https://vuldb.com/?ctiid.351109
• https://vuldb.com/?id.351109
• https://vuldb.com/?submit.769864
• https://vuldb.com/?submit.769865
• https://vuldb.com/?submit.769866
• https://vuldb.com/?submit.769867
• https://vuldb.com/?submit.769868
• https://vuldb.com/?submit.769869
• https://vuldb.com/?submit.769870
• https://vuldb.com/?submit.770363

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