CVE-2026-16448 - Vulnerability Details

- D-Link DNS-1550-04 remote_backup.cgi cgi_check_rsync_rw command injection

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. The affected element is the function cgi_check_rsync_rw of the file /cgi-bin/remote_backup.cgi. The manipulation of the argument ip results in command injection. The attack can be executed remotely. The exploit has been made public and could be used.

Published: 2026-07-21

Score: 5.3 Medium

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

D-Link

DNS-120

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNR-202L

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-315L

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-320

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-320L

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-320LW

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-321

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNR-322L

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-323

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-325

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-326

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-327L

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNR-326

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-340L

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-343

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-345

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-726-4

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-1100-4

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-1200-05

affected

Version	Status	Constraints
`20260205`	affected	—

D-Link

DNS-1550-04

affected

Version	Status	Constraints
`20260205`	affected	—

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://ucn9h68n9289.feishu.cn/docx/OfhNdwzvXoBlJBxDIW7clVmjnuh?from=from_copylink
https://vuldb.com/cve/CVE-2026-16448
https://vuldb.com/submit/858469
https://vuldb.com/vuln/380827
https://vuldb.com/vuln/380827/cti
https://www.dlink.com/

History

Tue, 21 Jul 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 21 Jul 2026 14:45:00 +0000

Type	Values Removed	Values Added
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. The affected element is the function cgi_check_rsync_rw of the file /cgi-bin/remote_backup.cgi. The manipulation of the argument ip results in command injection. The attack can be executed remotely. The exploit has been made public and could be used.
Title		D-Link DNS-1550-04 remote_backup.cgi cgi_check_rsync_rw command injection
First Time appeared		D-link D-link dnr-202l D-link dnr-322l D-link dnr-326 D-link dns-1100-4 D-link dns-120 D-link dns-1200-05 D-link dns-1550-04 D-link dns-315l D-link dns-320 D-link dns-320l D-link dns-320lw D-link dns-321 D-link dns-323 D-link dns-325 D-link dns-326 D-link dns-327l D-link dns-340l D-link dns-343 D-link dns-345 D-link dns-726-4
Weaknesses		CWE-74 CWE-77
CPEs		cpe:2.3:h:d-link:dnr-202l:::::::: cpe:2.3:h:d-link:dnr-322l:::::::: cpe:2.3:h:d-link:dnr-326:::::::: cpe:2.3:h:d-link:dns-1100-4:::::::: cpe:2.3:h:d-link:dns-1200-05:::::::: cpe:2.3:h:d-link:dns-120:::::::: cpe:2.3:h:d-link:dns-1550-04:::::::: cpe:2.3:h:d-link:dns-315l:::::::: cpe:2.3:h:d-link:dns-320:::::::: cpe:2.3:h:d-link:dns-320l:::::::: cpe:2.3:h:d-link:dns-320lw:::::::: cpe:2.3:h:d-link:dns-321:::::::: cpe:2.3:h:d-link:dns-323:::::::: cpe:2.3:h:d-link:dns-325:::::::: cpe:2.3:h:d-link:dns-326:::::::: cpe:2.3:h:d-link:dns-327l:::::::: cpe:2.3:h:d-link:dns-340l:::::::: cpe:2.3:h:d-link:dns-343:::::::: cpe:2.3:h:d-link:dns-345:::::::: cpe:2.3:h:d-link:dns-726-4::::::::
Vendors & Products		D-link D-link dnr-202l D-link dnr-322l D-link dnr-326 D-link dns-1100-4 D-link dns-120 D-link dns-1200-05 D-link dns-1550-04 D-link dns-315l D-link dns-320 D-link dns-320l D-link dns-320lw D-link dns-321 D-link dns-323 D-link dns-325 D-link dns-326 D-link dns-327l D-link dns-340l D-link dns-343 D-link dns-345 D-link dns-726-4
References		https://ucn9h68n9289.feishu.cn/docx/OfhNdwzvXoBlJBxDIW7clVmjnuh?from=from_copylink https://vuldb.com/cve/CVE-2026-16448 https://vuldb.com/submit/858469 https://vuldb.com/vuln/380827 https://vuldb.com/vuln/380827/cti https://www.dlink.com/
Metrics		cvssV2_0 `{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV4_0 `{'score': 5.3, 'vector': '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'}`

Subscriptions

D-link Dnr-202l Dnr-322l Dnr-326 Dns-1100-4 Dns-120 Dns-1200-05 Dns-1550-04 Dns-315l Dns-320 Dns-320l Dns-320lw Dns-321 Dns-323 Dns-325 Dns-326 Dns-327l Dns-340l Dns-343 Dns-345 Dns-726-4

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-07-21T14:15:37.230Z

Updated: 2026-07-21T14:55:10.371Z

Reserved: 2026-07-21T08:49:25.085Z

Link: CVE-2026-16448

Vulnrichment

Updated: 2026-07-21T14:52:49.776Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

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