CVE-2026-2210

D-Link DIR-823X set_filtering sub_4211C8 os command injection

8.6 High

A vulnerability has been found in D-Link DIR-823X 250416. This affects the function sub_4211C8 of the file /goform/set_filtering. Such manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

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: High
Integrity: High
Availability: High

Exploit likelihood

4.58%Up 4.4 points since Feb 9, 2026

What each source reports

CVE List Score used 8.6

D-Link DIR-823X set_filtering sub_4211C8 os command injection

Record: CVE-2026-2210
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CVSS 3.0: 7.2 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CVSS 2.0: 8.3 AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Weakness: CWE-78, CWE-77
Updated: 2026-11-02

EUVDEUVD-2026-6893 8.6

Record: EUVD-2026-6893
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Updated: 2026-11-02

GitHub AdvisoriesGHSA-q922-v4r9-2x72 7.3

A vulnerability has been found in D-Link DIR-823X 250416. This affects the function sub_4211C8 of...

Record: GHSA-q922-v4r9-2x72
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-77, CWE-78
Updated: 2026-11-02

NVD 7.3

Record: CVE-2026-2210
CVSS 4.0: 7.3 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 8.3 HighAV:N/AC:L/Au:M/C:C/I:C/A:C
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-2026-2210 is a high vulnerability (CVSS 8.6) in D-link Dir-823x, published February 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.58%, the 91st percentile. No source names a fixed version.