CVE-2021-42743 Local privilege escalation via a default path in Splunk Enterprise Windows
Local attackers can escalate privileges to the Splunk user due to a default path misconfiguration in Splunk Enterprise on Windows.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42743?
CVE-2021-42743 is a high-severity vulnerability in Splunk Splunk, published on 6 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A misconfiguration in the node default path allows for local privilege escalation from a lower privileged user to the Splunk user in Splunk Enterprise versions before 8.1.1 on Windows.
Weakness: CWE-427
Which versions are affected by CVE-2021-42743?
It affects 1 product.
Products include Splunk Splunk.
How do I fix CVE-2021-42743?
No fix has been published for CVE-2021-42743 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42743 being exploited?
There is no known exploitation of CVE-2021-42743 in the wild and no public exploit code.
Other vulnerabilities in Splunk Splunk
- CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function
- CVE-2026-76268 Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
- CVE-2026-76284 Improper Neutralization in Splunk Enterprise
- CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise
- CVE-2017-17067 Auth bypass in n/a
Sources
Also known as GHSA-h2qf-x496-gm8q.