Vulnerability record · CVE-2025-5622 · published 5 June 2025

CVE-2025-5622: Dlink dir-816 firmware memory buffer overflow vulnerability

Dlink · Dir 816 Firmware

A vulnerability was found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this issue is the function wirelessApcli_5g of the file /goform/wirelessApcli_5g. The manipulation of the argument apcli_mode_5g/apcli_enc_5g/apcli_default_key_5g leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

9.3 CVSS 4.0 Critical EPSS 2.5% · top 15.9% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow

9.3CVSS 4.0 base score, v2 10.0

2.5%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:

Affected products

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

Dir 816 Firmware Dlink

References

Link	Tags
https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_50/50.md	ExploitThird Party Advisory
https://vuldb.com/?ctiid.311108	Permissions Required
https://vuldb.com/?id.311108	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.589222	Third Party AdvisoryVDB Entry
https://www.dlink.com/	Product
https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_50/50.md	ExploitThird Party Advisory

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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%30 Jun 2025 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%16 Jan 2025 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%21 Feb 2024 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%8 Feb 2024 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%12 Sep 2023 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%26 Oct 2022 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%26 Oct 2022 9.8CVE-2022-43000Dlink dir-816 firmware out-of-bounds write vulnerabilityD-Link DIR-816 A2 1.10 B05 was discovered to contain a stack overflow via the wizardstep4_pskpwd parameter at /goform/form2WizardStep4.EPSS 1.3%26 Oct 2022

Source: NIST National Vulnerability Database (record CVE-2025-5622), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.