Buffer overflow in Zyxel Secuextender Ssl Vpn
CVE-2023-5593
The out-of-bounds write vulnerability in the Windows-based SecuExtender SSL VPN Client software version 4.0.4.0 could allow an authenticated local user to gain a privilege escalation by sending a crafted CREATE message.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Zyxel Secuextender_ssl_vpn — versions 4.0.4.0
- Zyxel Secuextender Ssl Vpn Client — versions 4.0.4.0
Weakness classification (CWE)
References
- security@zyxel.com.tw (vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-5593?
- CVE-2023-5593 is a high-severity vulnerability in Zyxel Secuextender Ssl Vpn, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-11-20.
- How severe is CVE-2023-5593?
- High severity. CVSS v3 base score is 7.8 out of 10.