CVE-2025-8175Network attack vector

Authenticated service interruption via null pointer dereference

Published Jul 26, 2025 · Updated Jul 28, 2025

Null pointer dereference in D-Link DI-8400 16.07.26A1 allows remote authenticated users to interrupt the jhttpd service. Within usb_paswd.asp, jhttpd mishandles a crafted share_enable argument and dereferences a null pointer. Low-privilege access to the web interface is required, and the reported consequence is loss of availability rather than data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Null pointer dereference in D-Link DI-8400 16.07.26A1 allows remote authenticated users to interrupt the jhttpd service. Within usb_paswd.asp, jhttpd mishandles a crafted share_enable argument and dereferences a null pointer. Low-privilege access to the web interface is required, and the reported consequence is loss of availability rather than data disclosure or modification.

The record

CVE
CVE-2025-8175
Published
Jul 26, 2025
Updated
Jul 28, 2025
Vendor
D-Link
Product
DI-8400
Classifications
CWE-404, CWE-476, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16.07.26A1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DI-8400version=16.07.26A1

Published CVSS scores

6.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.8VulDB CNAAV:N/AC:L/Au:S/C:N/I:N/A:C
5.7VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo