CVE-2023-41740Network attack vector

Unauthenticated file read via undisclosed path traversal

Published Aug 31, 2023 · Updated Oct 1, 2024

Path traversal in the CGI component of Synology Router Manager before 1.3.1-9346-6 allows remote attackers to read specific files. Synology identifies the affected locus only as the CGI component and has not published the pathname field, endpoint, or normalization error involved. No authentication or user interaction is required, and the documented consequence is limited to disclosure of specific files rather than arbitrary file access.

CVSS severity5.3
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the CGI component of Synology Router Manager before 1.3.1-9346-6 allows remote attackers to read specific files. Synology identifies the affected locus only as the CGI component and has not published the pathname field, endpoint, or normalization error involved. No authentication or user interaction is required, and the documented consequence is limited to disclosure of specific files rather than arbitrary file access.

The record

CVE
CVE-2023-41740
Published
Aug 31, 2023
Updated
Oct 1, 2024
Vendor
Synology
Product
Synology Router Manager (SRM)
Classifications
T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=1.3 <1.3.1-9346-6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Synology · Synology Router Manager (SRM)version=1.3 <1.3.1-9346-6

Published CVSS scores

5.3Synology Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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 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

T1005Data from Local System

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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