What is CVE-2025-13549?

CVE-2025-13549 is a high-severity vulnerability in D-link Dir-822k, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-11-23.

How severe is CVE-2025-13549?

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

Buffer overflow in D-link Dir-822k

CVE-2025-13549

A vulnerability was found in D-Link DIR-822K 1.00. This issue affects the function sub_455524 of the file /boafrm/formNtp. Performing manipulation of the argument submit-url results in buffer overflow. Remote exploitation of the attack is…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (23.8th 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:P/RL:X/RC:R.

Affected products

D-link Dir-822k — versions 1.00

Weakness classification (CWE)

References

VDB-333316 | D-Link DIR-822K formNtp sub_455524 buffer overflow (vdb-entry, technical-description)
VDB-333316 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #693776 | D-Link DIR-822k TK_1.00_20250513164613 Buffer Overflow (third-party-advisory)
github.com/QIU-DIE/CVE/issues/32 (exploit, issue-tracking)
www.dlink.com/ (product)

Frequently asked questions

What is CVE-2025-13549?: CVE-2025-13549 is a high-severity vulnerability in D-link Dir-822k, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-11-23.
How severe is CVE-2025-13549?: High severity. CVSS v3 base score is 8.8 out of 10.