Out-of-bounds read in PUPnP - #VU152876
Published: September 29, 2026
Vulnerability identifier: #VU152876
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper null termination and incorrect length calculation in the GENA SUBSCRIBE Callback URL parser when handling a GENA SUBSCRIBE request with a Callback header lacking a closing angle bracket. A remote attacker can send a specially crafted GENA SUBSCRIBE request to disclose sensitive information.
Affected software
PUPnP
Remediation
Install security update from vendor's website.
PUPnP - update to 22.1.6