What’s Vulnerable › Vulnerabilities

CVE-2022-37439: Malformed ZIP file crashes Universal Forwarders and Splunk Enterprise through file monitoring input

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-16 · updated 2026-06-17
• Weakness: CWE-409

Description

In Splunk Enterprise and Universal Forwarder versions in the following table, indexing a specially crafted ZIP file using the file monitoring input can result in a crash of the application. Attempts to restart the application would result in a crash and would require manually removing the malformed file.

Affected products

• Splunk Enterprise: from 8.1.0 before 8.1.11; from 8.2.0 before 8.2.7.1 — fixed in 8.1.11, 8.2.7.1
• Splunk Universal Forwarder: from 8.1.0 before 8.1.11; from 8.2.0 before 8.2.7.1 — fixed in 8.1.11, 8.2.7.1

How to fix

Upgrade to a fixed version: Splunk Enterprise 8.1.11, 8.2.7.1; Splunk Universal Forwarder 8.1.11, 8.2.7.1. Check the vendor advisory for mitigations.

References

• https://research.splunk.com/application/b237d393-2f57-4531-aad7-ad3c17c8b041
• https://www.splunk.com/en_us/product-security/announcements/svd-2022-0803.html
• https://research.splunk.com/application/b237d393-2f57-4531-aad7-ad3c17c8b041
• https://www.splunk.com/en_us/product-security/announcements/svd-2022-0803.html

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