PT-2026-25555 · D Link · D-Link Dir-816

Pjqwudi · Published 2026-03-02 · Updated 2026-03-16 · CVE-2026-4181

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions D-Link DIR-816 version 1.10CNB05

Description A security issue has been identified in D-Link DIR-816 version 1.10CNB05. The issue affects an unknown function within the /goform/form2RepeaterStep2.cgi file of the goahead component. Manipulating the key1/key2/key3/key4/pskValue argument can lead to a stack-based buffer overflow. This issue can be exploited remotely. The exploit for this issue has been publicly released. This vulnerability only impacts products that are no longer supported by the vendor.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-787

CWE-119

CWE-121

Related Identifiers

BDU:2026-04455

CVE-2026-4181

Affected Products

D-Link Dir-816

References · 12

• 🔥❌ https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.md · Exploit, Deleted
• https://bdu.fstec.ru/vul/2026-04455 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-4181 · Security Note
• https://twitter.com/ptdbugs/status/2033273615165120532 · Twitter Post
• https://dlink.com · Note
• https://vuldb.com/?ctiid.351085 · Note
• https://twitter.com/CveFindCom/status/2033577755678269506 · Twitter Post
• https://twitter.com/TheHackerWire/status/2033594215096324287 · Twitter Post
• https://twitter.com/CVEnew/status/2033361097256755222 · Twitter Post
• https://t.me/CVEtracker/47438 · Telegram Post
• https://vuldb.com/?submit.769829 · Note
• https://vuldb.com/?id.351085 · Note