CVE-2026-2210: d-link dir-823x Command Injection
CVSS: 8.6v4.0HighAnalyzed
Published 09-02-2026Last modified 23-02-2026
Vulnerability summary
CVE-2026-2210 is a high (CVSS 8.6) Command Injection vulnerability in d-link dir-823x. EPSS estimates a 4.58% chance of exploitation in the next 30 days, higher than 91.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.6/10
010
High · v4.0 (CVE.org)EPSS score
4.58%
0%100%
Low · +0.61 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 09-02-2026PublishedVulnerability first disclosed.
- 23-02-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
7 scores · 2 sources · 4 versionsHigh 8.6Preferred score · CVE.org (CNA)
CVSS: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:PSources2 sources · 7.3–8.6
- NVDNIST7.3HighCVSS: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:XDiffers
High 7.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:RSourcesAll 2 agree
- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
High 7.2Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:RSourcesSingle source
High 8.3Preferred score · CVE.org (CNA)
AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:URSourcesAll 2 agree
- NVDNIST8.3HighAV:N/AC:L/Au:M/C:C/I:C/A:C
EPSS trend
Probability
4.58%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
+0.61 pp
From 3.97% on 20-09-2026
20-09-202620-10-2026
EPSS score4.58%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFiles
Maturity: poc
Weaknesses
CWE · root cause- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Affected systems
D-link1 product
- dir-823x250416
Dlink1 product
- dir-823x_firmware250416
2 vendors · 2 products
References
6 links- github.com/master-abc/cve/issues/34Issue Tracking
- www.dlink.comProduct