What is the CVSS score of CVE-2025-70238?

CVE-2025-70238 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 Dir 513 Firmware are affected by CVE-2025-70238?

A critical stack buffer overflow vulnerability affects D-Link DIR-513 v1.10 routers with no available patch, enabling remote code execution through the WAN Wizard configuration interface.

Is there a public PoC exploit available for CVE-2025-70238?

Yes, a public proof-of-concept exploit is available for CVE-2025-70238. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-70238?

Within 24 hours: Inventory all D-Link DIR-513 v1.10 devices in your environment and assess their network exposure and criticality. Within 7 days: Implement network segmentation to restrict access to the WAN Wizard interface (goform/formSetWAN_Wizard52) to trusted administrative networks only, and deploy WAF rules to block malicious curTime parameters. Within 30 days: Evaluate replacement with patched D-Link firmware versions or alternative vendor equipment, as no patch timeline has been announced for this specific model.

Dir 513 Firmware CVE-2025-70238

HIGH

Stack-based Buffer Overflow (CWE-121)

2026-03-09 cve@mitre.org

Buffer Overflow D-Link Dir 513 Firmware

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:56 vuln.today

PoC Detected

Mar 11, 2026 - 20:02 vuln.today

Public exploit code

CVE Published

Mar 09, 2026 - 15:15 nvd

HIGH 7.5

DescriptionCVE.org

Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetWAN_Wizard52.

AnalysisAI

Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetWAN_Wizard52. [CVSS 7.5 HIGH]

Technical ContextAI

Classified as CWE-121 (Stack-based Buffer Overflow). Affects the curTime component of Dir-513 Firmware. Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetWAN_Wizard52.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.