CVE-2025-70246
Published: 10 March 2026
Summary
CVE-2025-70246 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 25.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated remote stack buffer overflow in exposed router web endpoint (goform/formVirtualServ) directly enables exploitation of a public-facing network device application, resulting in DoS via crashes/reboots.
NVD Description
Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formVirtualServ.
Deeper analysisAI
CVE-2025-70246 is a stack buffer overflow vulnerability (CWE-121) affecting the D-Link DIR-513 router in version 1.10. The issue arises in the handling of the curTime parameter sent to the goform/formVirtualServ endpoint, which can lead to a buffer overflow condition when processing malformed input.
Remote attackers require no authentication or user interaction to exploit this vulnerability over the network with low complexity, as indicated by its CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Successful exploitation results in high-impact availability disruption, such as device crashes or reboots, enabling denial-of-service attacks without affecting confidentiality or integrity.
Mitigation details and advisories are available through D-Link's security bulletin at https://www.dlink.com/en/security-bulletin/, product support page for DIR-513 at https://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-513, and a related CVE report on GitHub at https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2025-70246.
Details
- CWE(s)