Buffer Overflow in D-Link Router DIR-822K
CVE-2025-13549

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-822k
Vendor
CVE Published:
23 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-13549?

A buffer overflow vulnerability exists in the D-Link DIR-822K router, specifically within the /boafrm/formNtp file. This flaw arises from improper handling of the 'submit-url' argument in the function 'sub_455524'. An attacker can exploit this weakness remotely, potentially leading to unauthorized code execution or system compromise. As the exploit code is publicly available, immediate mitigation strategies should be employed by users of this router model to protect their networks.

Affected Version(s)

DIR-822K 1.00

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-13549 - Proof of Concept

References

https://vuldb.com/?id.333316
vdb-entrytechnical-description
https://vuldb.com/?ctiid.333316
signaturepermissions-required
https://vuldb.com/?submit.693776
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

hhsw34 (VulDB User)
JSON
.
CVE-2025-13549 : Buffer Overflow in D-Link Router DIR-822K