CVE-2026-8273

D-Link DNS-320 system_mgr.cgi cgi_merge_user os command injection

5.1 Medium

A weakness has been identified in D-Link DNS-320 2.06B01. This impacts the function cgi_set_host/cgi_set_ntp/cgi_fan_control/cgi_merge_user of the file /cgi-bin/system_mgr.cgi. This manipulation causes os command injection. It is possible to initiate the attack remotely.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

7.39%Up 7.1 points since May 11, 2026

What each source reports

CVE List Score used 5.1

D-Link DNS-320 system_mgr.cgi cgi_merge_user os command injection

Record: CVE-2026-8273
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
CVSS 2.0: 5.8 AV:N/AC:L/Au:M/C:P/I:P/A:P/E:ND/RL:ND/RC:UR
Weakness: CWE-78, CWE-77
Updated: 2026-11-02

EUVDEUVD-2026-29031 5.1

Record: EUVD-2026-29031
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5jp6-jc7m-x7q9 5.1

A weakness has been identified in D-Link DNS-320 2.06B01. This impacts the function cgi_set_host...

Record: GHSA-5jp6-jc7m-x7q9
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Weakness: CWE-77, CWE-78
Updated: 2026-11-02

NVD 5.1

Record: CVE-2026-8273
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 5.8 MediumAV:N/AC:L/Au:M/C:P/I:P/A:P
Weakness: CWE-77, CWE-78
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-8273 is a medium vulnerability (CVSS 5.1) in D-link Dns-320, published May 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.39%, the 94th percentile. No source names a fixed version.