Cyber Resilience

CVE-2025-50652

High

Published: 08 April 2026

Published
08 April 2026
Modified
22 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0005 15.2th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-50652 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Dlink Di-8003 Firmware. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 15.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2025-50652 affects the D-Link DI-8003 device running firmware version 16.07.26A1. The vulnerability arises from improper handling of the "id" parameter in the /saveparm_usb.asp endpoint, classified as CWE-120 (Buffer Copy without Checking Size of Input). It received a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) and was published on 2026-04-08.

Remote attackers require no authentication or privileges and can exploit the issue over the network with low attack complexity and no user interaction. Exploitation leads to a high-impact denial of service, potentially causing device crashes or reboots, while having no effect on confidentiality or integrity.

D-Link has issued security advisories addressing this vulnerability, including publication SAP10505 at https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505 and details on their security bulletin page at https://www.dlink.com/en/security-bulletin/. Further references appear in the IoT vulnerability collection on GitHub at https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md.

EU & UK References

Vulnerability details

An issue in D-Link DI-8003 16.07.26A1 related to improper handling of the id parameter in the /saveparm_usb.asp endpoint.

CWE(s)
CWE-120

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Buffer overflow in unauthenticated web endpoint enables remote exploitation of public-facing application for DoS via system/application crash.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2025-50646Same product: Dlink Di-8003
CVE-2025-50673Same product: Dlink Di-8003
CVE-2025-50649Same product: Dlink Di-8003
CVE-2025-50665Same product: Dlink Di-8003
CVE-2025-50653Same product: Dlink Di-8003
CVE-2025-50645Same product: Dlink Di-8003
CVE-2025-50667Same product: Dlink Di-8003
CVE-2025-50672Same product: Dlink Di-8003
CVE-2025-50644Same product: Dlink Di-8003
CVE-2025-50669Same product: Dlink Di-8003

Affected Assets

dlink
di-8003 firmware
16.07.26a1

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Requires validation of the 'id' parameter size and format in /saveparm_usb.asp to directly prevent CWE-120 buffer overflows from malformed inputs.

SC-5 Denial-of-service Protection good match
prevent

Implements denial-of-service protections to block or limit the impact of remote unauthenticated buffer overflow exploits causing device crashes or reboots.

SI-2 Flaw Remediation good match
prevent

Mandates timely remediation of the identified buffer overflow flaw via D-Link firmware patches referenced in SAP10505 to eliminate the vulnerability.

References