CVE-2022-27626Network attack vector

Unauthenticated command execution via OOB session race

Published Oct 20, 2022 · Updated May 8, 2025

Race condition in OOB Management session processing in Synology DSM before 7.1.1-42962-2 allows remote attackers to execute commands. The session-processing path concurrently uses a shared resource without proper synchronization; Synology has not disclosed the resource or trigger. Network access to OOB Management is sufficient, without authentication or user interaction, and successful exploitation executes arbitrary commands.

CVSS severity10.0
Critical
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in OOB Management session processing in Synology DSM before 7.1.1-42962-2 allows remote attackers to execute commands. The session-processing path concurrently uses a shared resource without proper synchronization; Synology has not disclosed the resource or trigger. Network access to OOB Management is sufficient, without authentication or user interaction, and successful exploitation executes arbitrary commands.

The record

CVE
CVE-2022-27626
Published
Oct 20, 2022
Updated
May 8, 2025
Vendor
Synology
Product
DiskStation Manager
Classifications
CWE-362, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 20, 2022CVE publishedPublication date reported by the CVE source.
  2. May 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <7.1.1-42962-2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Synology · DiskStation Managerversion=unspecified <7.1.1-42962-2

Published CVSS scores

10.0SynologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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