How severe is CVE-2018-5524?

CVE-2018-5524 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2018-5524 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5524?

CVE-2018-5524 primarily affects F5 Big-ip Application Acceleration Manager. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5524?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-5524 published?

CVE-2018-5524 was published on 2018-06-01 and last updated on 2026-06-17.

CVE-2018-5524

CVE-2018-5524 is a medium-severity vulnerability in F5 Big-ip Application Acceleration Manager with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: F5 Big-ip Application Acceleration Manager
Published: 2018-06-01
Last modified: 2026-06-17

Description

Under certain conditions, on F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.6.1 HF2-11.6.3.1, virtual servers configured with Client SSL or Server SSL profiles which make use of network hardware security module (HSM) functionality are exposed and impacted by this issue.

Frequently asked questions

What is CVE-2018-5524?: Under certain conditions, on F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.6.1 HF2-11.6.3.1, virtual servers configured with Client SSL or Server SSL profiles which make use of network hardware security module (HSM) functionality are exposed and impacted by this issue.
How severe is CVE-2018-5524?: CVE-2018-5524 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2018-5524 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5524?: CVE-2018-5524 primarily affects F5 Big-ip Application Acceleration Manager. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5524?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-5524 published?: CVE-2018-5524 was published on 2018-06-01 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

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