How severe is CVE-2019-6599?

CVE-2019-6599 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-6599 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6599?

CVE-2019-6599 affects F5 Big-ip Access Policy Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6599?

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

When was CVE-2019-6599 published?

CVE-2019-6599 was published on 2019-03-13 and last updated on 2026-06-17.

CVE-2019-6599

CVE-2019-6599 is a medium-severity vulnerability in F5 Big-ip Access Policy Manager with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: F5 Big-ip Access Policy Manager
Published: 2019-03-13
Last modified: 2026-06-17

Description

In BIG-IP 11.6.1-11.6.3.2 or 11.5.1-11.5.8, or Enterprise Manager 3.1.1, improper escaping of values in an undisclosed page of the configuration utility may result with an improper handling on the JSON response when it is injected by a malicious script via a remote cross-site scripting (XSS) attack.

Frequently asked questions

What is CVE-2019-6599?: In BIG-IP 11.6.1-11.6.3.2 or 11.5.1-11.5.8, or Enterprise Manager 3.1.1, improper escaping of values in an undisclosed page of the configuration utility may result with an improper handling on the JSON response when it is injected by a malicious script via a remote cross-site scripting (XSS) attack.
How severe is CVE-2019-6599?: CVE-2019-6599 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-6599 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6599?: CVE-2019-6599 affects F5 Big-ip Access Policy Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6599?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-6599 published?: CVE-2019-6599 was published on 2019-03-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

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