Cyber Posture

CVE-2025-70251

HighPublic PoC

Published: 10 March 2026

Published
10 March 2026
Modified
11 March 2026
KEV Added
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Patch
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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0004 13.4th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-70251 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Dlink Dir-513 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 13.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique.
Threat & Defense Details

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?

Direct remote exploitation of public web management interface (T1190) via crafted request to trigger stack buffer overflow resulting in system/application crash (T1499.004).

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

NVD Description

Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the webPage parameter to goform/formWlanGuestSetup.

Deeper analysisAI

CVE-2025-70251 is a stack buffer overflow vulnerability (CWE-121) in the D-Link DIR-513 router version 1.10. The flaw occurs via the webPage parameter sent to the /goform/formWlanGuestSetup endpoint, which can be triggered through the device's web interface.

The vulnerability carries 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), indicating it is exploitable over the network with low attack complexity, no authentication or user interaction required, and unchanged scope. A remote unauthenticated attacker can send a specially crafted request to trigger the buffer overflow, resulting in a denial-of-service condition through high availability impact, such as device crashes or reboots, with no direct effects on confidentiality or integrity.

For mitigation details, refer to D-Link's security bulletin at https://www.dlink.com/en/security-bulletin/, the DIR-513 product support page at https://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-513, and the CVE report on GitHub at https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2025-70251. The vulnerability was published on 2026-03-10.

Details

CWE(s)
CWE-121

Affected Products

dlink
dir-513 firmware
1.10

CVEs Like This One

CVE-2025-70247Same product: Dlink Dir-513
CVE-2025-70249Same product: Dlink Dir-513
CVE-2025-70227Same product: Dlink Dir-513
CVE-2025-70250Same product: Dlink Dir-513
CVE-2025-70238Same product: Dlink Dir-513
CVE-2025-70243Same product: Dlink Dir-513
CVE-2025-70219Same product: Dlink Dir-513
CVE-2025-70222Same product: Dlink Dir-513
CVE-2025-70226Same product: Dlink Dir-513
CVE-2025-70230Same product: Dlink Dir-513

References