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Vulnerability record · CVE-2026-8344 · published 11 May 2026

CVE-2026-8344: Dlink dir-816 firmware injection vulnerability

Dlink · Dir 816 Firmware

A weakness has been identified in D-Link DIR-816 1.10CNB05_R1B011D88210. Affected by this vulnerability is the function sub_445E7C of the file /goform/formDMZ.cgi. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

2.1 CVSS 4.0 Low EPSS 5.0% · top 8.1% CWE-74 · InjectionCWE-77 · Command injection
2.1CVSS 4.0 base score, v2 6.5
5.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A weakness has been identified in D-Link DIR-816 1.10CNB05_R1B011D88210. Affected by this vulnerability is the function sub_445E7C of the file /goform/formDMZ.cgi. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

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/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/lipenghai/iot_bug/blob/main/D-Link/DIR816/1.md ExploitThird Party Advisory
https://vuldb.com/submit/811378 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/362660 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/362660/cti Permissions RequiredVDB Entry
https://www.dlink.com/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-45931Dlink dir-816 firmware command injection vulnerabilityAn issue D-Link DIR-816-A2 DIR-816A2_FWv1.10CNB05_R1B011D88210 allows a remote attacker to execute arbitrary code via system() function in the bin/go…EPSS 1.0%9.8CVE-2024-57684Dlink dir-816 firmware incorrect default permissions vulnerabilityAn access control issue in the component formDMZ.cgi of D-Link 816A2_FWv1.10CNB05_R1B011D88210 allows unauthenticated attackers to set the DMZ servic…EPSS 14%9.8CVE-2023-24331Dlink dir-816 firmware command injection vulnerabilityCommand Injection vulnerability in D-Link Dir 816 with firmware version DIR-816_A2_v1.10CNB04 allows attackers to run arbitrary commands via the urlA…EPSS 2.1%9.8CVE-2024-24321Dlink dir-816 firmware command injection vulnerabilityAn issue in Dlink DIR-816A2 v.1.10CNB05 allows a remote attacker to execute arbitrary code via the wizardstep4_ssid_2 parameter in the sub_42DA54 fun…EPSS 1.9%9.8CVE-2023-39637Dlink dir-816 firmware command injection vulnerabilityD-Link DIR-816 A2 1.10 B05 was discovered to contain a command injection vulnerability via the component /goform/Diagnosis.EPSS 2.1%9.8CVE-2022-43003Dlink dir-816 firmware out-of-bounds write vulnerabilityD-Link DIR-816 A2 1.10 B05 was discovered to contain a stack overflow via the pskValue parameter in the setRepeaterSecurity function.EPSS 1.3%9.8CVE-2022-43002Dlink dir-816 firmware out-of-bounds write vulnerabilityD-Link DIR-816 A2 1.10 B05 was discovered to contain a stack overflow via the wizardstep54_pskpwd parameter at /goform/form2WizardStep54.EPSS 1.3%9.8CVE-2022-43001Dlink dir-816 firmware out-of-bounds write vulnerabilityD-Link DIR-816 A2 1.10 B05 was discovered to contain a stack overflow via the pskValue parameter in the setSecurity function.EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2026-8344), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.