How severe is CVE-2023-41740?

CVE-2023-41740 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-41740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-41740?

CVE-2023-41740 affects Synology Router Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-41740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-41740 published?

CVE-2023-41740 was published on 2023-08-31 and last updated on 2026-06-17.

CVE-2023-41740

CVE-2023-41740 is a medium-severity vulnerability in Synology Router Manager with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Synology Router Manager
Published: 2023-08-31
Last modified: 2026-06-17

Description

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in cgi component in Synology Router Manager (SRM) before 1.3.1-9346-6 allows remote attackers to read specific files via unspecified vectors.

Frequently asked questions

What is CVE-2023-41740?: Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in cgi component in Synology Router Manager (SRM) before 1.3.1-9346-6 allows remote attackers to read specific files via unspecified vectors.
How severe is CVE-2023-41740?: CVE-2023-41740 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-41740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-41740?: CVE-2023-41740 affects Synology Router Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-41740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-41740 published?: CVE-2023-41740 was published on 2023-08-31 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_23_10

Affected products (1)

cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*

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