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CVE-2025-62841

Hard-coded Cryptographic Key #2

No known exploitation. EPSS puts it in the 16th percentile. Fixed versions are out.

CVSS —Not scoredEPSS percentile16th0.2% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix2 products2 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • QNAP Systems Inc. HBS 3 Hybrid Backup SyncAffected: ≥ 26.4.x, < 26.4.0.521Upgrade to: 26.4.0.521Stated by: CVE record
  • QNAP Systems Inc. Hybrid Backup SyncAffected: ≥ 26.4.x, < 26.4.0.521Upgrade to: 26.4.0.521Affected: ≥ 26.4.x, < 26.4.1.563Upgrade to: 26.4.1.563Stated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

An use of hard-coded cryptographic key vulnerability has been reported to affect HBS 3 Hybrid Backup Sync and Hybrid Backup Sync. If exploited, the vulnerability could allow remote attackers to compromise the security of the system. We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 26.4.0.521 and later Hybrid Backup Sync 26.4.0.521 and later Hybrid Backup Sync 26.4.1.563 and later

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS16th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.2% chance of exploitation activity in the next 30 days, which ranks it in the 16th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

7 events over 0 days, from the signal feeds we watch.

  1. Patch availablepatch available, patch available, published, weakness classified, record updated, record updated

Affected products

Technical detail

Weaknesses

Sources

References in the record

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We'll flag the next CVE, public exploit or patch for HBS 3 Hybrid Backup Sync, not every advisory.