Path Traversal Vulnerability in D-Link DCS-850L Firmware Update Service
CVE-2025-15245

5.1MEDIUM

Key Information:

Vendor

D-link
Status
Dcs-850l
Vendor
CVE Published:
30 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15245?

A vulnerability has been identified in D-Link's DCS-850L model that affects the firmware update service. Specifically, the function responsible for uploading firmware is vulnerable to path traversal attacks due to improper handling of the DownloadFile argument. This allows malicious users within the local network to manipulate file paths, potentially accessing restricted files. Notably, this flaw only impacts versions of the DCS-850L that are no longer supported by D-Link, highlighting critical cloud and security concerns for users with outdated devices.

Affected Version(s)

DCS-850L 1.02.09

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-2025-15245 - Proof of Concept

References

https://vuldb.com/?id.338635
vdb-entrytechnical-description
https://vuldb.com/?ctiid.338635
signaturepermissions-required
https://vuldb.com/?submit.725742
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Adjacent 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

tian (VulDB User)
JSON
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CVE-2025-15245 : Path Traversal Vulnerability in D-Link DCS-850L Firmware Update Service