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TI-2024-13271 Aliases CVE-2024-20337GHSA-j296-jhq5-3x6c

A vulnerability in the SAML authentication process of Cisco Secure Client could allow an…

Priority MEDIUM 61CWE-93Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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 user. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.29906 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Secure Client4.9.00086; 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; 5.0.05040; 5.1.0.136; 5.1.1.42—No fix listedCNA
  • Cisco Secure Client VendorCisco Affected 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; 5.0.05040; 5.1.0.136; 5.1.1.42 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_client:*:*:*:*:*:*:*:*4.10.04065 to before 4.10.08025; 5.0.00529 to before 5.1.2.42VulnerableCisco
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:cisco:secure_client:*:*:*:*:*:*:*:* Versions 4.10.04065 to before 4.10.08025; 5.0.00529 to before 5.1.2.42 Vulnerable ·Cisco
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-20337
  2. 2026-10-03 Alias added: GHSA-j296-jhq5-3x6c

References

Advisory 1

  • TI-2023-06884 Incorrect default permissions in Cisco Secure Client CVSS 3.1HIGH 7.8
  • TI-2024-03415 DHCP routing options can manipulate interface-based VPN traffic CVSS 3.1HIGH 7.6
  • TI-2024-13272 Uncontrolled search path in Cisco Secure Client CVSS 3.1HIGH 7.3
  • TI-2025-14506 Cisco Secure Client for Windows with VPN Posture (HostScan) Module DLL Hijacking Vulnerability CVSS 3.1HIGH 7.8
  • TI-2024-13324 Missing authentication in Cisco Secure Client CVSS 3.1MEDIUM 6.8
  • TI-2024-13398 Integer underflow in Cisco Secure Client CVSS 3.1MEDIUM 6.5
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences