D-Link DI-8400 yyxz.asp yyxz_dlink_asp stack-based overflow
Priority HIGH 73CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A weakness has been identified in D-Link DI-8400 16.07.26A1. The affected element is the function yyxz_dlink_asp of the file /yyxz.asp. This manipulation of the argument ID causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be exploited.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01685 77th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| D-Link | DI-8400 | 16.07.26A1 | — | No fix listed | CNA |
- DI-8400 VendorD-Link Affected 16.07.26A1 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:di-8400_firmware:16.07.26a1:*:*:*:*:*:*:* | 16.07.26a1 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:di-8400:a1:*:*:*:*:*:*:* | a1 | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:di-8400_firmware:16.07.26a1:*:*:*:*:*:*:* Versions 16.07.26a1 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:di-8400:a1:*:*:*:*:*:*:* Versions a1 Running on ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9938
- 2026-10-03 Alias added: GHSA-pmpm-w6cf-w2p8
References
More D-Link vulnerabilities
- TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
- TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
- TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
- TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-9938 · CVE Program
- CVE-2025-9938 · NVD
- FIRST EPSS
- GHSA-pmpm-w6cf-w2p8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences