Vulnerability in Cisco Anyconnect Secure Mobility Client
CVE-2023-20178
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. This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.054 (92.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.054 · newest: 0.054 · change: 0.000
Affected products
- Cisco Anyconnect Secure Mobility Client
- Cisco Secure Client — versions 4.9.00086, 4.9.01095, 4.9.02028
- Cisco Secure Client
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2023-20178?
- CVE-2023-20178 is a high-severity vulnerability in Cisco Anyconnect Secure Mobility Client, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2023-06-28.
- How severe is CVE-2023-20178?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-20178 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.