Back to the CVE list
CVE-2025-62841

Hard-coded Cryptographic Key #2

CVSS score

8.7

EPSS probability

—

Risk score

0.9

Published

1 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2025-62841: Hard-coded Cryptographic Key Vulnerability in QNAP HBS 3 Hybrid Backup Sync and Hybrid Backup Sync

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

CVE-2025-62841 is a hard-coded cryptographic key vulnerability reported to affect QNAP HBS 3 Hybrid Backup Sync and Hybrid Backup Sync products (S0, S1). If exploited, it could allow remote attackers to compromise system security, carrying a high severity rating (S0, S1).

Why does it matter?

This flaw poses significant risk as it can lead to the compromise of system security without requiring privileges. Such implementation issues facilitate unauthorized access scenarios (S0, S1).

What should be done?

  • Follow vendor advisories for software updates (S0, S1)
  • Update relevant deployments to HBS 3 Hybrid Backup Sync 26.4.0.521, Hybrid Backup Sync 26.4.0.521, and Hybrid Backup Sync 26.4.1.563 or later (S0, S1)
Chain of evidence and sources3 verified claims

CVE-2025-62841 zafiyeti, QNAP HBS 3 Hybrid Backup Sync ve Hybrid Backup Sync ürünlerini etkileyen sabit kodlanmış kriptografik anahtar hatasından kaynaklanmaktadır.

S0 · daybreach-canonicalS1 · cvelist

Zafiyetin istismar edilmesi durumunda uzak saldırganlar sistem güvenliğini ele geçirebilir.

S0 · daybreach-canonicalS1 · cvelist

İlgili açık için CVSS 4.0 tabanlı skor 8.7 yüksek seviye olarak belirlenmiştir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

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

CVSS vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE: CWE-321

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2025-62841 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1QNAP Systems Inc.HBS 3 Hybrid Backup Sync View
2QNAP Systems Inc.Hybrid Backup Sync View
Total affected vendors: 1|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.7CVSS V4_0HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE CNA
8.7CVSS V40HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-62841 is associated with the following CWEs:

CWE-321: Common Weakness Enumeration Entry CWE-321

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-62841 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureBitişik ağ
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://www.qnap.com/en/app-release-notes?keyword=HBS%203&app=HybridBackup&product-line=nasvendor-advisoryhttps://www.qnap.com/en/app-release-notes?keyword=Hybrid&app=HybridBackup&product-line=nasvendor-advisory

CVSS Vector Radar Chart

8.7 / 10
Attack VectorAdjacentComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Attack VectorAdjacent network
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

QS
QNAP Systems Inc. logo
QNAP Systems Inc.

Weakness Type (CWE & CAPEC)

CWE-321

Similar Vulnerabilities

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free keyDocumentation
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2025-62841"
CVE-2025-62841 · Hard-coded Cryptographic Key #2 · DayBreach