What is CVE-2025-4451?

CVE-2025-4451 is a high-severity vulnerability in D-link Dir-619l, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-05-09.

How severe is CVE-2025-4451?

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

Buffer overflow in D-link Dir-619l

CVE-2025-4451

A vulnerability has been found in D-Link DIR-619L 2.04B04 and classified as critical. Affected by this vulnerability is the function formSetWAN_Wizard52. The manipulation of the argument curTime leads to buffer overflow. The attack can be…

Vulnerability class: Buffer Overflow

EPSS: 0.009 (76.5th 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.

Affected products

D-link Dir-619l — versions 2.04B04

Weakness classification (CWE)

References

VDB-308065 | D-Link DIR-619L formSetWAN_Wizard52 buffer overflow (vdb-entry, technical-description)
VDB-308065 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #560793 | D-Link DIR-619L 2.04B04 Buffer Overflow (third-party-advisory)
github.com/jylsec/vuldb/blob/main/D-Link/dlink_dir619l/Buffer_overflow-formSetW… (related)
www.dlink.com/ (product)

Frequently asked questions

What is CVE-2025-4451?: CVE-2025-4451 is a high-severity vulnerability in D-link Dir-619l, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-05-09.
How severe is CVE-2025-4451?: High severity. CVSS v3 base score is 8.8 out of 10.