CVE-2023-20241 - CVE House
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Status published Medium CVE-2023-20241

Multiple vulnerabilities in Cisco Secure Client Software, formerly AnyConnect Secure...

Vulnerability Description

Multiple vulnerabilities in Cisco Secure Client Software, formerly AnyConnect Secure Mobility Client, could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected system. These vulnerabilities are due to an out-of-bounds memory read from Cisco Secure Client Software. An attacker could exploit these vulnerabilities by logging in to an affected device at the same time that another user is accessing Cisco Secure Client on the same system, and then sending crafted packets to a port on that local host. A successful exploit could allow the attacker to crash the VPN Agent service, causing it to be unavailable to all users of the system. To exploit these vulnerabilities, the attacker must have valid credentials on a multi-user system.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Cisco Secure Client
Vulnerable Versions:
4.9.00086, 4.9.01095, 4.9.02028, 4.9.03047, 4.9.03049, 4.9.04043, 4.9.04053, 4.9.05042, 4.9.06037, 4.10.00093, 4.10.01075, 4.10.02086, 4.10.03104, 4.10.04065, 4.10.04071, 4.10.05085, 4.10.05095, 4.10.05111, 4.10.06079, 4.10.06090, 4.10.07061, 4.10.07062, 4.10.07073, 5.0.00238, 5.0.00529, 5.0.00556, 5.0.01242, 5.0.02075, 5.0.03072, 5.0.03076, 5.0.04032

Timeline

Official Publish: November 22nd, 2023
Last Modified: June 5th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)