What is the CVSS score of CVE-2025-50653?

CVE-2025-50653 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of D-Link are affected by CVE-2025-50653?

CVE-2025-50653 affects D-Link DI-8003 routers running firmware 16.07.26A1, exposing the device to unauthenticated denial-of-service attacks from the network.

How to fix or mitigate CVE-2025-50653?

Within 24 hours: Inventory all D-Link DI-8003 devices and confirm firmware versions in use; document which systems depend on affected units. Within 7 days: Isolate or restrict network access to affected routers via firewall rules limiting access to the /time_group.asp endpoint; monitor D-Link security advisories for patch availability. Within 30 days: Apply vendor patch immediately upon release to firmware 16.07.26A1 and later; test in non-production environment before deployment.

D-Link CVE-2025-50653

EUVD-2025-209334 HIGH

Classic Buffer Overflow (CWE-120)

2026-04-08 mitre

GHSA-826p-7fm9-74fr

D-Link Buffer Overflow

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 22, 2026 - 16:22 vuln.today

cvss_changed

EUVD ID Assigned

Apr 08, 2026 - 19:31 euvd

EUVD-2025-209334

Analysis Generated

Apr 08, 2026 - 19:31 vuln.today

CVE Published

Apr 08, 2026 - 00:00 nvd

HIGH 7.5

DescriptionCVE.org

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the name and mem parameters in the /time_group.asp endpoint.

AnalysisAI

Buffer overflow in D-Link DI-8003 router firmware 16.07.26A1 enables unauthenticated remote attackers to trigger denial-of-service conditions via malformed name and mem parameters submitted to the /time_group.asp endpoint. The vulnerability requires no user interaction and permits network-based exploitation with low attack complexity. No public exploit identified at time of analysis. EPSS score of 0.02% indicates low observed exploitation activity.

Technical ContextAI

CWE-120 buffer overflow stems from insufficient input validation on name and mem parameters in the time_group.asp HTTP endpoint. Improper boundary checking allows oversized inputs to overflow fixed-size buffers, destabilizing device availability. The CVSS vector AV:N/PR:N confirms network-accessible attack surface requiring no authentication, typical of embedded web management interface vulnerabilities in networking appliances.

RemediationAI

No vendor-released patch identified at time of analysis. Monitor D-Link security bulletin at https://www.dlink.com/en/security-bulletin/ for firmware updates addressing CVE-2025-50653. Immediate mitigations: restrict management interface access to trusted IP ranges via firewall rules, disable remote administration if not operationally required, implement network segmentation isolating affected devices from untrusted networks. Organizations should verify device necessity and consider replacement if vendor discontinues support. Consult https://nvd.nist.gov/vuln/detail/CVE-2025-50653 for updated remediation guidance as vendor response develops.