Vulnerability Monitor

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CVE-2018-5531


Through undisclosed methods, on F5 BIG-IP 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.2.1-11.5.6, adjacent network attackers can cause a denial of service for VCMP guest and host systems. Attack must be sourced from adjacent network (layer 2).


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 13 products from f5, from f5, from f5 and 10 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2018-07-25T14:29:00.243

Last Modified

2024-11-21T04:09:00.547

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.4 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

6.5

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application f5 big-ip_local_traffic_manager ≤ 11.5.6 Yes
Application f5 big-ip_local_traffic_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_local_traffic_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_local_traffic_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_application_acceleration_manager ≤ 11.5.6 Yes
Application f5 big-ip_application_acceleration_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_application_acceleration_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_application_acceleration_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_advanced_firewall_manager ≤ 11.5.6 Yes
Application f5 big-ip_advanced_firewall_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_advanced_firewall_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_advanced_firewall_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_analytics ≤ 11.5.6 Yes
Application f5 big-ip_analytics ≤ 11.6.3.1 Yes
Application f5 big-ip_analytics ≤ 12.1.3.5 Yes
Application f5 big-ip_analytics ≤ 13.1.0.7 Yes
Application f5 big-ip_access_policy_manager ≤ 11.5.6 Yes
Application f5 big-ip_access_policy_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_access_policy_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_access_policy_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_application_security_manager ≤ 11.5.6 Yes
Application f5 big-ip_application_security_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_application_security_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_application_security_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_domain_name_system ≤ 11.5.6 Yes
Application f5 big-ip_domain_name_system ≤ 11.6.3.1 Yes
Application f5 big-ip_domain_name_system ≤ 12.1.3.5 Yes
Application f5 big-ip_domain_name_system ≤ 13.1.0.7 Yes
Application f5 big-ip_edge_gateway ≤ 11.5.6 Yes
Application f5 big-ip_edge_gateway ≤ 11.6.3.1 Yes
Application f5 big-ip_edge_gateway ≤ 12.1.3.5 Yes
Application f5 big-ip_edge_gateway ≤ 13.1.0.7 Yes
Application f5 big-ip_fraud_protection_service ≤ 11.5.6 Yes
Application f5 big-ip_fraud_protection_service ≤ 11.6.3.1 Yes
Application f5 big-ip_fraud_protection_service ≤ 12.1.3.5 Yes
Application f5 big-ip_fraud_protection_service ≤ 13.1.0.7 Yes
Application f5 big-ip_global_traffic_manager ≤ 11.5.6 Yes
Application f5 big-ip_global_traffic_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_global_traffic_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_global_traffic_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_link_controller ≤ 11.5.6 Yes
Application f5 big-ip_link_controller ≤ 11.6.3.1 Yes
Application f5 big-ip_link_controller ≤ 12.1.3.5 Yes
Application f5 big-ip_link_controller ≤ 13.1.0.7 Yes
Application f5 big-ip_policy_enforcement_manager ≤ 11.5.6 Yes
Application f5 big-ip_policy_enforcement_manager ≤ 11.6.3.1 Yes
Application f5 big-ip_policy_enforcement_manager ≤ 12.1.3.5 Yes
Application f5 big-ip_policy_enforcement_manager ≤ 13.1.0.7 Yes
Application f5 big-ip_webaccelerator ≤ 11.5.6 Yes
Application f5 big-ip_webaccelerator ≤ 11.6.3.1 Yes
Application f5 big-ip_webaccelerator ≤ 12.1.3.5 Yes
Application f5 big-ip_webaccelerator ≤ 13.1.0.7 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For f5's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.