How severe is CVE-2023-28742?

CVE-2023-28742 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-28742 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28742?

CVE-2023-28742 affects F5 Big-ip Domain Name System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28742?

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-2023-28742 published?

CVE-2023-28742 was published on 2023-05-03 and last updated on 2026-06-17.

CVE-2023-28742

CVE-2023-28742 is a high-severity vulnerability in F5 Big-ip Domain Name System with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: F5 Big-ip Domain Name System
Published: 2023-05-03
Last modified: 2026-06-17

Description

When DNS is provisioned, an authenticated remote command execution vulnerability exists in DNS iQuery mesh. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Frequently asked questions

What is CVE-2023-28742?: When DNS is provisioned, an authenticated remote command execution vulnerability exists in DNS iQuery mesh. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
How severe is CVE-2023-28742?: CVE-2023-28742 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-28742 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28742?: CVE-2023-28742 affects F5 Big-ip Domain Name System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28742?: 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-2023-28742 published?: CVE-2023-28742 was published on 2023-05-03 and last updated on 2026-06-17.

References

https://my.f5.com/manage/s/article/K000132972

Affected products (1)

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

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