What is CVE-2023-41739?

CVE-2023-41739 is a medium-severity vulnerability in Synology Router Manager, classified under CWE-400: UNCONTROLLED RESOURCE CONSUMPTION. CVSS score: 4.9/10. Published 2023-08-31.

How severe is CVE-2023-41739?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Is CVE-2023-41739 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Synology Router Manager

CVE-2023-41739

Uncontrolled resource consumption vulnerability in File Functionality in Synology Router Manager (SRM) before 1.3.1-9346-6 allows remote authenticated users to conduct denial-of-service attacks via unspecified vectors.

Published 2023-08-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000

Affected products

Synology Router Manager
Synology Router Manager (Srm) — versions 1.3, 0

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

www.synology.com/en-global/security/advisory/Synology_SA_23_10 (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-41739?: CVE-2023-41739 is a medium-severity vulnerability in Synology Router Manager, classified under CWE-400: UNCONTROLLED RESOURCE CONSUMPTION. CVSS score: 4.9/10. Published 2023-08-31.
How severe is CVE-2023-41739?: Medium severity. CVSS v3 base score is 4.9 out of 10.
Is CVE-2023-41739 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.