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CVE-2025-50644 D-Link CVE debrief

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper validation of user input in the qj.asp endpoint. The vulnerability has a CVSS score of 7.5 and is classified as HIGH severity. This issue may allow an attacker to execute arbitrary code. Affected users should apply patches or updates as recommended by the vendor. The vulnerability is caused by a lack of proper input validation in the qj.asp endpoint, which can lead to a buffer overflow and potentially allow an attacker to execute arbitrary code. Users of D-Link DI-8003 16.07.26A1 should be aware of this vulnerability and take necessary precautions to prevent exploitation.

Vendor
D-Link
Product
DI-8003
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-25
Advisory published
2026-04-08
Advisory updated
2026-07-25

Who should care

Users of D-Link DI-8003 16.07.26A1, security teams, and system administrators should be aware of this vulnerability and take necessary precautions to prevent exploitation. This includes applying patches or updates, limiting access to the qj.asp endpoint, and monitoring for suspicious activity. The vulnerability has a high impact on the system and requires immediate attention from security teams and system administrators.

Technical summary

The vulnerability is caused by improper validation of user input in the qj.asp endpoint of D-Link DI-8003 16.07.26A1. This allows an attacker to overflow the buffer and potentially execute arbitrary code. The CVSS score of 7.5 indicates a high severity vulnerability. The vulnerability affects D-Link DI-8003 16.07.26A1 and can be exploited by an attacker to execute arbitrary code. The vulnerability has a high impact on the system and requires immediate attention.

Defensive priority

High

Recommended defensive actions

  • Apply the vendor's patch or update to a fixed version
  • Limit access to the qj.asp endpoint
  • Monitor for suspicious activity
  • Review compensating controls for exposed systems
  • Check relevant monitoring, detection, and logs for exposed assets
  • Track exceptions and retest remediated assets
  • Perform an asset inventory to identify potentially affected systems

Evidence notes

The CVE record was published on 2026-04-08T19:24:15.103Z and last modified on 2026-07-25T10:10:00.167Z. The NVD entry is currently Modified. This vulnerability affects D-Link DI-8003 16.07.26A1. Users should verify their deployments and review vendor guidance for mitigation. The vulnerability has a high CVSS score of 7.5 and is classified as HIGH severity. The CVE record provides detailed information about the vulnerability, including its impact and potential exploits.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-50644 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-50644

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-50644 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-50644

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.