CVE-2023-5748

5.5 mediumEPSS 0.2%

Medium (5.5) in synology ssl vpn client. EPSS 0.2% chance of exploitation in the next 30 days.

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in cgi component in Synology SSL VPN Client before 1.4.7-0687 allows local users to conduct denial-of-service attacks via unspecified vectors.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2023-11-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

synology:ssl_vpn_client

References

https://www.synology.com/en-global/security/advisory/Synology_SA_23_12
https://www.synology.com/en-global/security/advisory/Synology_SA_23_12

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