What is CVE-2025-7945?

CVE-2025-7945 is a high-severity vulnerability in D-link Dir-513, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-07-21.

How severe is CVE-2025-7945?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in D-link Dir-513

CVE-2025-7945

A vulnerability was found in D-Link DIR-513 up to 20190831. It has been declared as critical. This vulnerability affects the function formSetWanDhcpplus of the file /goform/formSetWanDhcpplus. The manipulation of the argument curTime leads…

Vulnerability class: Buffer Overflow

EPSS: 0.012 (79.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R.

Affected products

D-link Dir-513 — versions 20190831

Weakness classification (CWE)

References

VDB-317086 | D-Link DIR-513 formSetWanDhcpplus buffer overflow (vdb-entry, technical-description)
VDB-317086 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #619200 | D-Link DIR-513 10 Buffer Overflow (third-party-advisory)
github.com/LYN1ng/D-linkdir513/blob/main/Dlink_DIR-513_Buffer_Overflow_Vulnerab… (related)
www.dlink.com/ (product)

Frequently asked questions

What is CVE-2025-7945?: CVE-2025-7945 is a high-severity vulnerability in D-link Dir-513, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-07-21.
How severe is CVE-2025-7945?: High severity. CVSS v3 base score is 8.8 out of 10.