vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2022-43572

Indexing blockage via malformed data sent through S2S or HEC protocols in Splunk Enterprise

MEDIUM
6.5
CVSS Score
Published: November 4, 2022 at 10:23 PM UTC
Updated: June 17, 2026 at 05:06 AM UTC
2 products affected across 1 vendorSplunkSplunk Cloud Platform

Using Splunk Enterprise by Splunk?

Get instant alerts when new vulnerabilities affect Splunk Enterprise - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

In Splunk Enterprise versions below 8.2.9, 8.1.12, and 9.0.2, sending a malformed file through the Splunk-to-Splunk (S2S) or HTTP Event Collector (HEC) protocols to an indexer results in a blockage or denial-of-service preventing further indexing.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Splunk· Splunk
95%
8.1 ≤ v < 8.1.128.1.0 ≤ v < 8.1.128.2 ≤ v < 8.2.98.2.0 ≤ v < 8.2.99.0 ≤ v < 9.0.29.0.0 ≤ v < 9.0.28.18.29.0
Affected range stops below 8.1.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.2.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.2, so it looks safe — our inference, not a vendor statement
Splunk Cloud Platform· Splunk
95%
v < 9.0.2209
Affected range stops below 9.0.2209, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Not ApplicableVendor Advisory
Source: [email protected]
https://www.splunk.com/en_us/product-security/announcements/svd-2022-1111.html

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-94

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card