CVE-2022-49041

Client crash via unchecked backup-task buffer copy

Published Sep 26, 2024 · Updated Sep 26, 2024

Classic buffer overflow in Synology Drive Client before 3.4.0-15721 allows local users with administrator privileges to crash the client. Backup task management copies input into a buffer without checking its size, but Synology has not disclosed the entry point or input field. Local administrator privileges are required; exploitation interrupts client availability without reported data disclosure or modification.

CVSS severity4.4
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Classic buffer overflow in Synology Drive Client before 3.4.0-15721 allows local users with administrator privileges to crash the client. Backup task management copies input into a buffer without checking its size, but Synology has not disclosed the entry point or input field. Local administrator privileges are required; exploitation interrupts client availability without reported data disclosure or modification.

The record

CVE
CVE-2022-49041
Published
Sep 26, 2024
Updated
Sep 26, 2024
Vendor
Synology
Product
Synology Drive Client
Classifications
CWE-120, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record 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=* <3.5.0-16084

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Synology · Synology Drive Clientversion=* <3.5.0-16084

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
4.4Synology Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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