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9.8
D-Link DIR-513 Router DDNS Configuration Overflow
CVE-2025-70230
Summary
A flaw in the DIR-513 router's Dynamic DNS configuration feature allows an attacker to potentially execute malicious code on the device. This could allow unauthorized access to the router or the network it serves. Upgrade to a fixed version of the firmware to address this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| dlink | dir-513_firmware | 1.10 | – |
Original title
Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetDDNS.
Original description
Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetDDNS.
nvd CVSS3.1
9.8
Vulnerability type
CWE-121
Stack-based Buffer Overflow
- https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2025-70230 Exploit Third Party Advisory
- https://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-513 Product
- https://www.dlink.com/en/security-bulletin/ Vendor Advisory
Published: 5 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026