Universal Forwarder management services allows remote login by default

published 2022-06-15 4y ago modified 2026-06-17 4mo ago also EUVD-2022-53392

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.0%; EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits: 0; none known

In universal forwarder versions before 9.0, management services are available remotely by default. When not required, it introduces a potential exposure, but it is not a vulnerability. If exposed, we recommend each customer assess the potential severity specific to your environment. In 9.0, the universal forwarder now binds the management port to localhost preventing remote logins by default. If management services are not required in versions before 9.0, set disableDefaultPort = true in server.conf OR allowRemoteLogin = never in server.conf OR mgmtHostPort = localhost in web.conf. See Configure universal forwarder management security (https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_universal_forwarder_management_security) for more information on disabling the remote management services.

Patch / fix

fixed in 2

splunk splunk 9.0
splunk splunk_cloud_platform 8.2.2106

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Exploit prediction

2.01% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

Splunk, Inc Universal Forwarder

Classification

Weakness

CWE-732 Incorrect Permission Assignment for Critical Resource

References

docs.splunk.com /Documentation/Splunk/9.0.0/Security/Updates
release-notes, vendor-advisory
splunk.com /en_us/product-security/announcements/svd-2022-0605.html
vendor-advisory
docs.splunk.com /Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_universal_forwarder_management_
mitigation, vendor-advisory

Sources

CVE List CVE-2022-32155
NVD CVE-2022-32155

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