Is CVE-2018-15506 actively exploited?

No active exploitation of CVE-2018-15506 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-15506 be exploited remotely?

Yes. CVE-2018-15506 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-15506?

CVE-2018-15506 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2018-15506

CWE-611Published: June 19, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In BubbleUPnP 0.9 update 30, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running BubbleUPnP, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack the cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.

NVD Source

Technical Analysis

CVE-2018-15506 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.