PT-2025-35854 · D Link · Di-8400

N0Ps1Ed · Published 2025-09-03 · Updated 2025-09-05 · CVE-2025-9938

Positive Technologies · (AI Summary)

CVSS v2.0

9.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions:

D-Link DI-8400 version 16.07.26A1

Description:

A stack-based buffer overflow issue exists in the `yyxz dlink asp` function of the `/yyxz.asp` file. Manipulation of the `ID` argument can trigger this issue, allowing for remote exploitation. The exploit for this issue has been publicly released.

Recommendations:

As a temporary workaround, consider restricting access to the `/yyxz.asp` file until a fix is available.

Exploit

Fix

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-119

CWE-121

Related Identifiers

CVE-2025-9938

Affected Products

Di-8400

References · 11

• 🔥 https://github.com/ZZ2266/.github.io/tree/main/Dlink/DI-8400/yyxz.asp#proof-of-concept-poc · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-9938 · Security Note
• https://github.com/ZZ2266/.github.io/tree/main/Dlink/DI-8400/yyxz.asp · Note
• https://vuldb.com/?submit.643446 · Note
• https://twitter.com/CveFindCom/status/1963979384659886193 · Twitter Post
• https://twitter.com/CVEnew/status/1963389135537774840 · Twitter Post
• https://vuldb.com/?ctiid.322340 · Note
• https://t.me/CVEtracker/31647 · Telegram Post
• https://dlink.com · Note
• https://vuldb.com/?id.322340 · Note
• https://twitter.com/VulmonFeeds/status/1963569225039073284 · Twitter Post