Vulnerability · Published Jun 5, 2025 · Assigned by VulDB

CVE-2025-5622D-Link DIR-816 wirelessApcli_5g stack-based overflow

Critical 9.8

In plain English

A critical-severity stack buffer overflow in DIR-816 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 86% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)2.6%top 14.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
D-Link	DIR-816	1.10CNB05

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

VDB-311108 | D-Link DIR-816 wirelessApcli_5g stack-based overflow vdb-entry, technical-description
VDB-311108 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #589222 | D-Link DIR816 1.10CNB05 Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_50/50.md exploit
https://www.dlink.com/ product