Buffer Overflow Vulnerability in D-Link DI-7100G C1 Remote Management
CVE-2025-11339

8.7HIGH

Key Information:

Vendor

D-link
Status
Di-7100g C1
Vendor
CVE Published:
6 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11339?

A buffer overflow vulnerability has been identified in D-Link DI-7100G C1, specifically within the remote management component jhttpd, in the function sub_4BD4F8 located in the file /webchat/hi_block.asp. This vulnerability allows an attacker to manipulate the popupId argument, leading to potentially unauthorized remote execution. The exploit is publicly disclosed, emphasizing its potential for exploitation and the importance of prompt remediation. Users are advised to check for updates from D-Link to mitigate this risk.

Affected Version(s)

DI-7100G C1 20250928

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-2025-11339 - Proof of Concept

References

https://vuldb.com/?id.327222
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327222
signaturepermissions-required
https://vuldb.com/?submit.664635
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

sheratan (VulDB User)
JSON
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CVE-2025-11339 : Buffer Overflow Vulnerability in D-Link DI-7100G C1 Remote Management