SB2026092968 - Memory leak in PUPnP
Published: September 29, 2026
Security Bulletin ID
SB2026092968
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to missing release of memory in the freeSubscription() event queue list when processing repeated GENA SUBSCRIBE and UNSUBSCRIBE requests. A remote attacker can repeatedly create and tear down subscriptions to exhaust device memory.
Accepted subscriptions always queue an initial event.
Remediation
Install update from vendor's website.