What is CVE-2023-32955?

CVE-2023-32955 is a high-severity vulnerability in Synology Router Manager, classified under CWE-78: IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION'). CVSS score: 8.1/10. Published 2023-05-16.

How severe is CVE-2023-32955?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Synology Router Manager

CVE-2023-32955

Improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in DHCP Client Functionality in Synology Router Manager (SRM) before 1.2.5-8227-6 and 1.3.1-9346-3 allows man-in-the-middle attackers to execute arbitrary commands via unspecified vectors.

Published 2023-05-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.8th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Synology Router Manager
Synology Router Manager (Srm) — versions 1.2, 1.3

References

www.synology.com/en-global/security/advisory/Synology_SA_22_25 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-32955?: CVE-2023-32955 is a high-severity vulnerability in Synology Router Manager, classified under CWE-78: IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION'). CVSS score: 8.1/10. Published 2023-05-16.
How severe is CVE-2023-32955?: High severity. CVSS v3 base score is 8.1 out of 10.