Vulnerability · Published Nov 20, 2023 · Assigned by Zyxel
CVE-2023-5593
High 7.8
In plain English
A high-severity out-of-bounds write in SecuExtender SSL VPN Client from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 87.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | SecuExtender SSL VPN Client | 4.0.4.0 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H