Buffer Overflow Vulnerability in D-Link DIR-822K and DWR-M920
CVE-2025-13550

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-2025-13550?

A buffer overflow vulnerability has been identified in the D-Link DIR-822K and DWR-M920 routers, primarily affecting the submission of URLs via the /boafrm/formVpnConfigSetup interface. An attacker can exploit this vulnerability remotely by manipulating the 'submit-url' argument, potentially leading to adverse impacts on device functionality and security. The details of this vulnerability have been made publicly available, and users are highly encouraged to assess their exposure and apply appropriate mitigations.

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-2025-13550 - Proof of Concept

References

https://vuldb.com/?id.333317
vdb-entrytechnical-description
https://vuldb.com/?ctiid.333317
signaturepermissions-required
https://vuldb.com/?submit.693777
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-2025-13550 : Buffer Overflow Vulnerability in D-Link DIR-822K and DWR-M920