Security Resilience

CVE-2024-10442

Synology Replication Service ≤ 1.0.12-0066

Published
19 March 2025
Modified
16 January 2026
Patch / advisory
View advisory
CVSS Score v3.1 10.0
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.014 73th percentile
Risk Priority 84 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-10442 is a critical-severity Off-by-one Error (CWE-193) vulnerability in Synology Diskstation Manager. Its CVSS base score is 10.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 27% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-10442 is an off-by-one error vulnerability (CWE-193) in the transmission component of Synology Replication Service versions prior to 1.0.12-0066, 1.2.2-0353, and 1.3.0-0423, as well as Synology Unified Controller (DSMUC) versions prior to 3.1.4-23079. The flaw carries a CVSS 3.1 score of 10.0 and permits remote code execution with full system impact across confidentiality, integrity, and availability.

Unauthenticated attackers with network access can exploit the issue without user interaction to run arbitrary code on affected systems, potentially compromising the broader environment through unspecified vectors.

The official Synology advisory Synology_SA_24_22 recommends updating Replication Service and DSMUC to the fixed releases listed above to address the vulnerability.

The associated EPSS score remains flat at 0.1459 with no material increase observed since disclosure.

EU & UK References

Vulnerability Data

Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066, 1.2.2-0353 and 1.3.0-0423 and Synology Unified Controller (DSMUC) before 3.1.4-23079 allows remote attackers to execute arbitrary code, potentially leading to a broader impact across the system via…

more

unspecified vectors.

CWE(s)
CWE-193

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2021-3156Same product: Synology Diskstation Manager
CVE-2023-28709Same product class: NAS / storage appliance
CVE-2024-45539Same product: Synology Diskstation Manager
CVE-2024-45538Same product: Synology Diskstation Manager
CVE-2023-0142Same product: Synology Diskstation Manager
CVE-2024-5401Same product: Synology Diskstation Manager
CVE-2023-2729Same product: Synology Diskstation Manager
CVE-2024-0854Same product: Synology Diskstation Manager
CVE-2024-10444Same product: Synology Diskstation Manager
CVE-2024-29235Same product: Synology Diskstation Manager

Affected Assets

synology
unified controller
≤ 3.1.4-23079
synology
replication service
≤ 1.0.12-0066 · ≤ 1.2.2-0353
syncology
replication service
≤ 1.3.0-0423

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V6.2.1

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover off-by-one errors in loops, bounds, and calculations before deployment.

SA-15 Development Process, Standards, and Tools partial match

Requiring documented development standards and tools can embed bounds-checking and arithmetic-correctness rules that stop off-by-one mistakes at introduction.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match
blocks

Secure SDLC practices directly prevent off-by-one errors via reviews, static analysis, and testing.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References