6.5

CVE-2025-20389: splunk Improper Input Validation

CVSS: 6.5v3.1MediumAnalyzed
Published 03-12-2025Last modified 03-12-2025
Open JSON

Vulnerability summary

CVE-2025-20389 is a medium (CVSS 6.5) Improper Input Validation vulnerability in splunk. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.2% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-12-2025
    PublishedVulnerability first disclosed.
  2. 03-12-2025
    Last modifiedVulnerability information updated.

Description

In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and versions below 3.9.10, 3.8.58 and 3.7.28 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload through the `label` column field after adding a new device in the Splunk Secure Gateway app. This could potentially lead to a client-side denial of service (DoS).

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

0.00 pp

From 0.41% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Splunk4 products
  • splunk≥ 9.2.0, < 9.2.10 | ≥ 9.3.0, < 9.3.8 | ≥ 9.4.0, < 9.4.6 | ≥ 10.0.0, < 10.0.2
  • splunk_cloud_platform≥ 9.3.2411, < 9.3.2411.120 | ≥ 10.0.2503, < 10.0.2503.8 | ≥ 10.1.2507, < 10.1.2507.6
  • splunk enterprise≥ 10.0, < 10.0.2 | ≥ 9.4, < 9.4.6 | ≥ 9.3, < 9.3.8 | ≥ 9.2, < 9.2.10
  • splunk_secure_gateway≥ 3.9, < 3.9.10 | ≥ 3.8, < 3.8.58 | ≥ 3.7, < 3.7.28 | ≥ 3.7.0, < 3.7.28 | ≥ 3.8.0, < 3.8.58 | ≥ 3.9.0, < 3.9.10

1 vendor · 4 products

References

1 links