CVE-2023-0077

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-05 · updated 2026-06-17

Description

Integer overflow or wraparound vulnerability in CGI component in Synology Router Manager (SRM) before 1.2.5-8227-6 and 1.3.1-9346-3 allows remote attackers to overflow buffers via unspecified vectors.

Affected products

Synology Router Manager (SRM): from 1.2 before 1.2.5-8227-6; from 1.3 before 1.3.1-9346-3 — fixed in 1.2.5-8227-6, 1.3.1-9346-3

How to fix

Upgrade to a fixed version: Synology Router Manager (SRM) 1.2.5-8227-6, 1.3.1-9346-3. Check the vendor advisory for mitigations.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_22_25
https://www.synology.com/en-global/security/advisory/Synology_SA_22_25

Get alerted when CVE-2023-0077 or the next vulnerability affects your stack