How severe is CVE-2018-15331?

CVE-2018-15331 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15331 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15331?

CVE-2018-15331 primarily affects F5 Big-ip Application Acceleration Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-15331?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-15331 published?

CVE-2018-15331 was published on 2018-12-20 and last updated on 2026-06-17.

CVE-2018-15331

CVE-2018-15331 is a high-severity vulnerability in F5 Big-ip Application Acceleration Manager with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: F5 Big-ip Application Acceleration Manager
Published: 2018-12-20
Last modified: 2026-06-17

Description

On BIG-IP AAM 13.0.0 or 12.1.0-12.1.3.7, the dcdb_convert utility used by BIG-IP AAM fails to drop group permissions when executing helper scripts, which could be used to leverage attacks against the BIG-IP system.

Frequently asked questions

What is CVE-2018-15331?: On BIG-IP AAM 13.0.0 or 12.1.0-12.1.3.7, the dcdb_convert utility used by BIG-IP AAM fails to drop group permissions when executing helper scripts, which could be used to leverage attacks against the BIG-IP system.
How severe is CVE-2018-15331?: CVE-2018-15331 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15331 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15331?: CVE-2018-15331 primarily affects F5 Big-ip Application Acceleration Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-15331?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-15331 published?: CVE-2018-15331 was published on 2018-12-20 and last updated on 2026-06-17.

References

https://support.f5.com/csp/article/K54843525

Affected products (2)

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*

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