What is CVE-2025-70221?

CVE-2025-70221 is a critical-severity vulnerability in Dlink Dir-513, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-03-04.

How severe is CVE-2025-70221?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Dlink Dir-513

CVE-2025-70221

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

Vulnerability class: Buffer Overflow

EPSS: 0.005 (39.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dlink Dir-513
Dlink Dir-513_firmware — versions 1.10
N/a — versions n/a

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-70221?: CVE-2025-70221 is a critical-severity vulnerability in Dlink Dir-513, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-03-04.
How severe is CVE-2025-70221?: Critical severity. CVSS v3 base score is 9.8 out of 10.