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01 Record

CVE-2026-20204

Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise

HighPUBLISHEDCNA: cisco
CNA base score7.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

02 Description

Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
3.09% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 87.5% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-26.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-15 15:17Z6 MO AGO
Last updated
2026-04-16 03:55Z6 MO AGO
Reserved
2025-10-08
Assigning CNA
cisco
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-377Insecure Temporary FileClass
Data version
5.2
Document digest
cf172b8fab66b7e002be2c22d58a5407dbada993a4853b029b8db29c472e9fb5

05 Affected products

VendorProductVersionsPlatforms
SplunkSplunk Enterprise10.2 to < 10.2.1, 10.0 to < 10.0.5, 9.4 to < 9.4.10, 9.3 to < 9.3.11—
SplunkSplunk Cloud Platform10.4.2603 to < Not Affected, 10.3.2512 to < 10.3.2512.5, 10.2.2510 to < 10.2.2510.9, 10.1.2507 to < 10.1.2507.19, 10.0.2503 to < 10.0.2503.13, 9.3.2411 to < 9.3.2411.127—

06 References