CVE-2025-29896: NULL Pointer Dereference in qsyncsrv.cgi

Description

A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 and later

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 20% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

QC

Qsync Central · QNAP Systems Inc.

5.0.x before 5.0.0.4 · source: vendor