CVE-2025-20300
CVE-2025-20300 is a medium-severity vulnerability in Splunk with a CVSS 3.x base score of 4.3. 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-863.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (16th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-20304
- Weakness: CWE-863
- Affected product: Splunk
- Published:
- Last modified:
Description
In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.6, and 9.1.9 and Splunk Cloud Platform versions below 9.3.2411.103, 9.3.2408.112, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles, and has read-only access to a specific alert, could suppress that alert when it triggers. See [Define alert suppression groups to throttle sets of similar alerts](https://help.splunk.com/en/splunk-enterprise/alert-and-respond/alerting-manual/9.4/manage-alert-trigger-conditions-and-throttling/define-alert-suppression-groups-to-throttle-sets-of-similar-alerts).
Frequently asked questions
- What is CVE-2025-20300?
- In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.6, and 9.1.9 and Splunk Cloud Platform versions below 9.3.2411.103, 9.3.2408.112, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles, and has read-only access to a specific alert, could suppress that alert when it triggers. See [Define alert suppression groups to throttle sets of similar alerts](https://help.splunk.com/en/splunk-enterprise/alert-and-respond/alerting-manual/9.4/manage-alert-trigger-conditions-and-throttling/define-alert-suppression-groups-to-throttle-sets-of-similar-alerts).
- How severe is CVE-2025-20300?
- CVE-2025-20300 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2025-20300 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-20300?
- CVE-2025-20300 primarily affects Splunk. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-20300?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-20300 have an EU (EUVD) identifier?
- Yes. CVE-2025-20300 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20304.
- When was CVE-2025-20300 published?
- CVE-2025-20300 was published on 2025-07-07 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
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