Buffer Overflow Vulnerability in D-Link DIR-822K and DWR-M920 Products
CVE-2025-13548

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-2025-13548?

A significant buffer overflow vulnerability has been identified in D-Link DIR-822K and DWR-M920 devices. This vulnerability exists in the code handling the /boafrm/formFirewallAdv file, specifically related to an argument known as submit-url. Attackers can exploit this weakness remotely, potentially leading to unauthorized access or control over the affected devices. As this vulnerability has been publicly disclosed, it is crucial for users to update their devices to mitigate risks associated with potential exploits.

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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-2025-13548 - Proof of Concept

References

https://vuldb.com/?id.333315
vdb-entrytechnical-description
https://vuldb.com/?ctiid.333315
signaturepermissions-required
https://vuldb.com/?submit.693767
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)
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