How severe is CVE-2017-6142?

CVE-2017-6142 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-6142 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-6142?

CVE-2017-6142 primarily affects F5 Big-ip Advanced Firewall 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-2017-6142?

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

When was CVE-2017-6142 published?

CVE-2017-6142 was published on 2018-01-19 and last updated on 2026-06-17.

CVE-2017-6142

CVE-2017-6142 is a medium-severity vulnerability in F5 Big-ip Advanced Firewall Manager with a CVSS 3.x base score of 4.8. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 5.8
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: F5 Big-ip Advanced Firewall Manager
Published: 2018-01-19
Last modified: 2026-06-17

Description

X509 certificate verification was not correctly implemented in the early access "user id" feature in the F5 BIG-IP Advanced Firewall Manager versions 13.0.0, 12.1.0-12.1.2, and 11.6.0-11.6.2, and thus did not properly validate the remote server's identity on certain versions of BIG-IP.

Frequently asked questions

What is CVE-2017-6142?: X509 certificate verification was not correctly implemented in the early access "user id" feature in the F5 BIG-IP Advanced Firewall Manager versions 13.0.0, 12.1.0-12.1.2, and 11.6.0-11.6.2, and thus did not properly validate the remote server's identity on certain versions of BIG-IP.
How severe is CVE-2017-6142?: CVE-2017-6142 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-6142 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-6142?: CVE-2017-6142 primarily affects F5 Big-ip Advanced Firewall 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-2017-6142?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-6142 published?: CVE-2017-6142 was published on 2018-01-19 and last updated on 2026-06-17.

References

Affected products (2)

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

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