QNAP Patches High-Severity Vulnerabilities in NetBak Replicator and Qsync Central
QNAP has addressed two high-severity security vulnerabilities affecting its NetBak Replicator and Qsync Central products. The first vulnerability, tracked as CVE-2025-53595, is an SQL injection flaw in Qsync Central. This vulnerability allows a remote attacker with a user account to execute unauthorized code or commands on the affected system. QNAP has released a fix for this issue in Qsync Central version 5.0.0.2 and later, mitigating the risk of exploitation. The second vulnerability, identified as CVE-2025-57714, impacts NetBak Replicator and is classified as an unquoted search path or element vulnerability. This flaw enables a local attacker with a user account to execute unauthorized code or commands, potentially leading to privilege escalation or further compromise of the system. The vulnerability in NetBak Replicator has been resolved in version 4.5.15.0807 and later. Both vulnerabilities have been assigned high CVSS scores, with the SQL injection in Qsync Central rated at 8.6 and the NetBak Replicator flaw at 8.5, reflecting their significant security impact. QNAP's security advisories recommend that users update to the latest versions of the affected products to ensure protection against these threats. The SQL injection vulnerability in Qsync Central is remotely exploitable, increasing its risk profile, while the NetBak Replicator issue requires local access. No specific details about exploitation in the wild have been reported, but the technical nature of the flaws underscores the importance of prompt patching. The vulnerabilities were reported to QNAP by security researchers and disclosed through official channels, including CVE databases and QNAP's own security team. The advisories do not list the exact affected product versions prior to the fixed releases, but users are urged to verify their software versions and apply updates as soon as possible. QNAP's response demonstrates a commitment to addressing security issues in a timely manner, with coordinated disclosure and clear communication to customers. Organizations using QNAP NetBak Replicator or Qsync Central should review their deployment, assess potential exposure, and implement the recommended updates. The vulnerabilities highlight the ongoing risk of both remote and local exploitation vectors in widely used backup and synchronization software. Security teams are advised to monitor for any signs of compromise and to follow best practices for user account management and software maintenance. The prompt release of patches and public disclosure of these vulnerabilities contribute to the overall security posture of QNAP's user base.
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QNAP releases fixes for Qsync Central and NetBak Replicator vulnerabilities
QNAP announced fixes for two high-severity flaws: an SQL injection issue in Qsync Central and a remote code execution issue in NetBak Replicator. The vendor patch information was reported publicly on October 6, 2025.
CVE records published for QNAP Qsync Central and NetBak Replicator flaws
CVE-2025-53595 affecting Qsync Central and CVE-2025-57714 affecting NetBak Replicator were publicly listed in CVE feeds as high-severity vulnerabilities. The references indicate public disclosure by October 3, 2025.
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QNAP Fixes High-Severity Flaws: NetBak Replicator RCE and SQL Injection in Qsync Central
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Open sourceCVE-2025-53595 - Qsync Central
cvefeed.io
Open sourceCVE-2025-57714 - NetBak Replicator
cvefeed.io
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