SB2026092471 - Inefficient Algorithmic Complexity in PUPnP

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026092471

SB2026092471 - Inefficient Algorithmic Complexity in PUPnP

Published: September 24, 2026

Security Bulletin ID SB2026092471
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Inefficient Algorithmic Complexity (CVE-ID: N/A)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to inefficient algorithmic complexity in ixmlParseBufferEx() when parsing crafted well-formed XML in SOAP POST requests. A remote attacker can send a legal-size crafted XML request to cause a denial of service.

The request must target a registered control URL, use the text/xml content type, and include a SOAPACTION header.


Remediation

Install update from vendor's website.

References