High [CVE-2023-20178] vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM
This high-severity Cisco advisory covers CVE-2023-20178 affecting Secure Client.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Get an email when Cisco publishes the next one.
VulniPulse checks Cisco's security advisories around the clock and emails you new ones with the severity, the fixed version and the vendor's link. First month free, then US$15/month; we email you before the first charge.
Summary
A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established.
- Scope: This vulnerability affects Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
Mitigation checklist
- A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM.
- The client update process is executed after a successful VPN connection is established.
- There are no workarounds that address this vulnerability.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
More Cisco advisories
- CVE-2026-76462Oct 21, 2026Cisco Secure Client Secure Firewall Posture Module Privilege Escalation Vulnerability
- CVE-2026-105482Oct 27, 2026Vulnerabilities in node.js Affecting Cisco Products: October 2026
- cisco-sa-emudhra-info-ScS22A1rOct 23, 2026Cisco Informational for Emergency Distrust of eMudhra Root and Intermediate Certificate
- CVE-2026-109618Oct 21, 2026Vulnerabilities in PHP Affecting Cisco Products: October 2026
- CVE-2026-76445Oct 21, 2026Multiple Cisco Products Snort 3 Denial of Service Vulnerability
- CVE-2026-20221Oct 21, 2026Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service
Android app · Google Play
Monitor future Cisco CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.