How severe is CVE-2021-23006?

CVE-2021-23006 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-2021-23006 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23006?

CVE-2021-23006 affects F5 Big-iq Centralized Management. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23006?

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

When was CVE-2021-23006 published?

CVE-2021-23006 was published on 2021-03-31 and last updated on 2026-06-17.

CVE-2021-23006

CVE-2021-23006 is a medium-severity vulnerability in F5 Big-iq Centralized Management 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% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: F5 Big-iq Centralized Management
Published: 2021-03-31
Last modified: 2026-06-17

Description

On all 7.x and 6.x versions (fixed in 8.0.0), undisclosed BIG-IQ pages have a reflected cross-site scripting vulnerability. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Frequently asked questions

What is CVE-2021-23006?: On all 7.x and 6.x versions (fixed in 8.0.0), undisclosed BIG-IQ pages have a reflected cross-site scripting vulnerability. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
How severe is CVE-2021-23006?: CVE-2021-23006 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-2021-23006 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23006?: CVE-2021-23006 affects F5 Big-iq Centralized Management. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23006?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23006 published?: CVE-2021-23006 was published on 2021-03-31 and last updated on 2026-06-17.

References

https://support.f5.com/csp/article/K30585021

Affected products (1)

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

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