D-Link DNS-1550-04 download_mgr.cgi RSS_Item_List command injection
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| D-Link | DNS-120 | 20260205 | — | No fix listed | CNA |
| D-Link | DNR-202L | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-315L | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-320 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-320L | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-320LW | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-321 | 20260205 | — | No fix listed | CNA |
| D-Link | DNR-322L | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-323 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-325 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-326 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-327L | 20260205 | — | No fix listed | CNA |
| D-Link | DNR-326 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-340L | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-343 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-345 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-726-4 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-1100-4 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-1200-05 | 20260205 | — | No fix listed | CNA |
| D-Link | DNS-1550-04 | 20260205 | — | No fix listed | CNA |
- DNS-120 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNR-202L VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-315L VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-320 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-320L VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-320LW VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-321 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNR-322L VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-323 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-325 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-326 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-327L VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNR-326 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-340L VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-343 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-345 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-726-4 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-1100-4 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-1200-05 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
- DNS-1550-04 VendorD-Link Affected 20260205 Fixed in — No fix listed CNA
CPE configurations NVD · 40
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dnr-202l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dnr-326:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-1100-4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-120:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-1200-05:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dnr-202l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dnr-326:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-1100-4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-120:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-1200-05:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
Show 30 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-1550-04:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-315l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-320:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-320l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-320lw_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-320lw:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-321_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-321:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-322l_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-322l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-323:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-325:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-326_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-326:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-327l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-340l_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-340l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-343_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-343:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-345_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-345:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dns-726-4_firmware:*:*:*:*:*:*:*:* | up to 2026-02-05 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dns-726-4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-1550-04:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-315l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-320:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-320l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-320lw_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-320lw:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-321_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-321:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-322l_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-322l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-323:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-325:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-326_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-326:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-327l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-340l_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-340l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-343_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-343:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-345_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-345:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dns-726-4_firmware:*:*:*:*:*:*:*:* Versions up to 2026-02-05 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dns-726-4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4197
- 2026-10-03 Alias added: GHSA-67xj-v4w4-4wcm
References
More D-Link vulnerabilities
- TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
- TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
- TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
- TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-4197 · CVE Program
- CVE-2026-4197 · NVD
- FIRST EPSS
- GHSA-67xj-v4w4-4wcm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences