CVE-2024-29240Network attack vector

Authenticated service interruption via LayoutSave authorization failure

Published Mar 28, 2024 · Updated Aug 1, 2025

Missing authorization in Synology Surveillance Station before 9.2.0-11289 and 9.2.0-9289 allows remote authenticated users to interrupt service. The LayoutSave webapi component fails to enforce an authorization check, but Synology has not published the request fields or operation that trigger the condition. A valid account and network access to the web API are required, and the reported consequence is limited denial of service rather than data disclosure or modification.

CVSS severity4.3
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Synology Surveillance Station before 9.2.0-11289 and 9.2.0-9289 allows remote authenticated users to interrupt service. The LayoutSave webapi component fails to enforce an authorization check, but Synology has not published the request fields or operation that trigger the condition. A valid account and network access to the web API are required, and the reported consequence is limited denial of service rather than data disclosure or modification.

The record

CVE
CVE-2024-29240
Published
Mar 28, 2024
Updated
Aug 1, 2025
Vendor
Synology
Product
Surveillance Station
Classifications
CWE-862, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=* <9.2.0-11289
  2. Affected versionversion=* <9.2.0-9289

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Synology · Surveillance Stationversion=* <9.2.0-11289; version=* <9.2.0-9289

Published CVSS scores

4.3Synology Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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