What is CVE-2025-70223?

CVE-2025-70223 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-2025-70223?

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

Buffer overflow in Dlink Dir-513

CVE-2025-70223

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

Vulnerability class: Buffer Overflow

Published 2026-03-04 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.005 (41.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Dlink Dir-513
Dlink Dir-513 Firmware — versions 1.10

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

www.dlink.com/en/security-bulletin/ (Vendor Advisory)
www.dlink.com.cn/techsupport/ProductInfo.aspx (Product)
github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2025-70223 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-70223?: CVE-2025-70223 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-2025-70223?: Critical severity. CVSS v3 base score is 9.8 out of 10.