What is the CVSS score of CVE-2025-70233?

CVE-2025-70233 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Dir 513 Firmware are affected by CVE-2025-70233?

A critical stack buffer overflow vulnerability (CVE-2025-70233) affects D-Link DIR-513 v1.10 devices with a 9.8 CVSS severity rating and active public exploits.

Is there a public PoC exploit available for CVE-2025-70233?

Yes, a public proof-of-concept exploit is available for CVE-2025-70233. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-70233?

Within 24 hours: Inventory all D-Link DIR-513 v1.10 devices in production and isolate them from untrusted networks; disable remote administration if enabled. Within 7 days: Implement network segmentation to restrict access to affected devices; deploy WAF rules blocking malicious curTime parameter payloads to the /goform/formSetEnableWizard endpoint. Within 30 days: Replace affected devices with patched alternatives or approved vendor equipment; establish device firmware update policy requiring quarterly reviews.

Dir 513 Firmware CVE-2025-70233

CRITICAL

Stack-based Buffer Overflow (CWE-121)

2026-03-05 cve@mitre.org

D-Link Buffer Overflow Dir 513 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

PoC Detected

Mar 06, 2026 - 17:36 vuln.today

Public exploit code

CVE Published

Mar 05, 2026 - 19:16 nvd

CRITICAL 9.8

DescriptionCVE.org

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

AnalysisAI

Stack buffer overflow in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetEnableWizard. Part of a family of 15+ critical buffer overflows in this router.

Technical ContextAI

CWE-121 stack buffer overflow via curTime parameter. The DIR-513 has numerous buffer overflow vulnerabilities across its web management interface.

RemediationAI

Replace the D-Link DIR-513 — it is end of life. No patches will be released.

CVE-2025-70233 vulnerability details – vuln.today

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Dir 513 Firmware CVE-2025-70233

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code