Buffer Overflow Vulnerability in D-Link DIR-822K and DWR-M920 Routers
CVE-2025-13552

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-822k
Dwr-m920
Vendor
CVE Published:
23 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-13552?

A security flaw has been identified in D-Link DIR-822K and DWR-M920 routers, specifically related to an unknown function in the /boafrm/formWlEncrypt file. The flaw arises when the argument submit-url is manipulated, leading to a buffer overflow condition. This vulnerability can be exploited remotely, allowing attackers to cause potential disruptions or unauthorized access to system data. With the exploit made public, users are urged to take precautionary measures to secure their devices.

Affected Version(s)

DIR-822K 1.00_20250513164613

DIR-822K 1.1.50

DWR-M920 1.00_20250513164613

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-2025-13552 - Proof of Concept

References

https://vuldb.com/?id.333319
vdb-entrytechnical-description
https://vuldb.com/?ctiid.333319
signaturepermissions-required
https://vuldb.com/?submit.693803
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
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CVE-2025-13552 : Buffer Overflow Vulnerability in D-Link DIR-822K and DWR-M920 Routers