CVE-2024-53695 HBS 3 Hybrid Backup Sync
Remote attackers can exploit a buffer overflow in QNAP HBS 3 to modify memory, execute code, or crash processes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-53695?
CVE-2024-53695 is a medium-severity memory corruption vulnerability in QNAP Systems Inc. HBS 3 Hybrid Backup Sync, published on 7 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A buffer overflow vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If exploited, the vulnerability could allow remote attackers to modify memory or crash processes.
We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 25.1.4.952 and later
Which versions are affected by CVE-2024-53695?
It affects 1 product.
Products include Qnap Hybrid Backup Sync.
How do I fix CVE-2024-53695?
No fix has been published for CVE-2024-53695 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-53695 being exploited?
There is no known exploitation of CVE-2024-53695 in the wild and no public exploit code.
Other vulnerabilities in QNAP Systems Inc. HBS 3 Hybrid Backup Sync
Sources
Also known as GHSA-56j5-vwwf-v97g.