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9.8
D-Link DIR-513 Router: Authentication Bypass via Malicious Login Request
CVE-2025-70221
Summary
A security issue with the D-Link DIR-513 router's login feature allows an attacker to potentially bypass authentication. This means an unauthorized person could access the router's settings. Users should update their DIR-513 routers to the latest firmware version.
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/formLogin.
Original description
Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formLogin.
nvd CVSS3.1
9.8
Vulnerability type
CWE-121
Stack-based Buffer Overflow
- https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2025-70221 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: 4 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026