How severe is CVE-2025-20366?

CVE-2025-20366 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-20366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-20366?

CVE-2025-20366 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-2025-20366?

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

Does CVE-2025-20366 have an EU (EUVD) identifier?

Yes. CVE-2025-20366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32712.

When was CVE-2025-20366 published?

CVE-2025-20366 was published on 2025-10-01 and last updated on 2026-06-17.

CVE-2025-20366

CVE-2025-20366 is a medium-severity vulnerability in Splunk with a CVSS 3.x base score of 6.5. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32712
Weakness: CWE-284
Affected product: Splunk
Published: 2025-10-01
Last modified: 2026-06-17

Description

In Splunk Enterprise versions below 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.111, 9.3.2408.119, and 9.2.2406.122, a low-privileged user that does not hold the admin or power Splunk roles could access sensitive search results if Splunk Enterprise runs an administrative search job in the background. If the low privileged user guesses the search job’s unique Search ID (SID), the user could retrieve the results of that job, potentially exposing sensitive search results. For more information see https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/about-jobs-and-job-management and https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/manage-search-jobs.

Frequently asked questions

What is CVE-2025-20366?: In Splunk Enterprise versions below 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.111, 9.3.2408.119, and 9.2.2406.122, a low-privileged user that does not hold the admin or power Splunk roles could access sensitive search results if Splunk Enterprise runs an administrative search job in the background. If the low privileged user guesses the search job’s unique Search ID (SID), the user could retrieve the results of that job, potentially exposing sensitive search results. For more information see https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/about-jobs-and-job-management and https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/manage-search-jobs.
How severe is CVE-2025-20366?: CVE-2025-20366 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-20366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-20366?: CVE-2025-20366 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-2025-20366?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-20366 have an EU (EUVD) identifier?: Yes. CVE-2025-20366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32712.
When was CVE-2025-20366 published?: CVE-2025-20366 was published on 2025-10-01 and last updated on 2026-06-17.

References

https://advisory.splunk.com/advisories/SVD-2025-1001

Affected products (2)

cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*

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