Cisco Secure Client vulnerabilities

9 CVEs affecting Cisco Secure Client, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-20206, published 2025-03-05.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2024-20337, published 2024-03-06. High severity, CVSS 8.2. EPSS: 29.9% chance of exploitation in the next 30 days. A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a…
• CVE-2023-20178, published 2023-06-28. High severity, CVSS 7.8. EPSS: 5.4% chance of exploitation in the next 30 days. 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,…
• CVE-2024-3661, published 2024-05-06. High severity, CVSS 7.6. EPSS: 4.1% chance of exploitation in the next 30 days. DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over…
• CVE-2024-20338, published 2024-03-06. High severity, CVSS 7.3. EPSS: 0.9% chance of exploitation in the next 30 days. A vulnerability in the ISE Posture (System Scan) module of Cisco Secure Client for Linux could allow an authenticated, local attacker to elevate privileges on an affected device. This…
• CVE-2024-20474, published 2024-10-23. Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days. A vulnerability in Internet Key Exchange version 2 (IKEv2) processing of Cisco Secure Client Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) of Cisco…
• CVE-2024-20391, published 2024-05-15. Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days. A vulnerability in the Network Access Manager (NAM) module of Cisco Secure Client could allow an unauthenticated attacker with physical access to an affected device to elevate privileges to…
• CVE-2023-20241, published 2023-11-22. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. 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…
• CVE-2023-20240, published 2023-11-22. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. 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…
• CVE-2025-20206, published 2025-03-05. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. A vulnerability in the interprocess communication (IPC) channel of Cisco Secure Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack on an affected device…