Cyber Resilience

CVE-2025-70222

CriticalPublic PoC

Published: 04 March 2026

Published
04 March 2026
Modified
06 March 2026
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0049 38.0th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-70222 is a critical-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Dlink Dir-513 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 38.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).

Deeper analysis

CVE-2025-70222 is a stack buffer overflow vulnerability (CWE-121) in D-Link DIR-513 router version 1.10. The flaw occurs via the curTime parameter sent to the /goform/formLogin or /goform/getAuthCode endpoints, potentially leading to buffer overrun conditions during processing.

The vulnerability carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating it is exploitable over the network with low attack complexity, requiring no privileges or user interaction. Remote unauthenticated attackers can trigger the overflow, achieving high impacts on confidentiality, integrity, and availability, such as arbitrary code execution and complete router compromise.

Mitigation guidance and patches are referenced in vendor advisories, including D-Link's security bulletin at https://www.dlink.com/en/security-bulletin/, product support page at https://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-513, and a CVE report at https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2025-70222. The CVE was published on 2026-03-04T22:16:12.050.

EU & UK References

Vulnerability details

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

CWE(s)
CWE-121

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 →
Why these techniques?

The vulnerability is a remotely exploitable stack buffer overflow in a public-facing web interface (/goform endpoints) on a router, enabling unauthenticated arbitrary code execution, directly mapping to Exploitation of Public-Facing Application.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-70218Same product: Dlink Dir-513
CVE-2025-70233Same product: Dlink Dir-513
CVE-2025-70244Same product: Dlink Dir-513
CVE-2025-70232Same product: Dlink Dir-513
CVE-2025-70230Same product: Dlink Dir-513
CVE-2025-70219Same product: Dlink Dir-513
CVE-2025-70242Same product: Dlink Dir-513
CVE-2025-70223Same product: Dlink Dir-513
CVE-2025-70225Same product: Dlink Dir-513
CVE-2025-70229Same product: Dlink Dir-513

Affected Assets

dlink
dir-513 firmware
1.10

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly enforces validation of the curTime parameter at login endpoints to prevent stack buffer overflows from malformed input.

SI-16 Memory Protection good match
prevent

Implements stack canaries and memory protections to detect and block exploitation of the stack buffer overflow vulnerability.

SI-2 Flaw Remediation good match
prevent

Mandates timely remediation of the specific stack buffer overflow flaw in D-Link DIR-513 firmware via vendor patches.

References