What’s Vulnerable › Vulnerabilities

CVE-2023-3997: Unauthenticated Log Injection In Splunk SOAR

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-31 · updated 2026-06-17
• Weakness: CWE-117

Description

Splunk SOAR versions lower than 6.1.0 are indirectly affected by a potential vulnerability accessed through the user’s terminal. A third party can send Splunk SOAR a maliciously crafted web request containing special ANSI characters to cause log file poisoning. When a terminal user attempts to view the poisoned logs, this can tamper with the terminal and cause possible malicious code execution from the terminal user’s action.

Affected products

• Splunk SOAR: before 6.1.0; before 6.1.0.131 — fixed in 6.1.0, 6.1.0.131

How to fix

Upgrade to a fixed version: Splunk SOAR 6.1.0, 6.1.0.131. Check the vendor advisory for mitigations.

References

• https://advisory.splunk.com/advisories/SVD-2023-0702
• https://advisory.splunk.com/advisories/SVD-2023-0702

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