Is CVE-2021-42743 in the CISA KEV catalog?

No. CVE-2021-42743 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-42743?

CVE-2021-42743 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-42743?

CVE-2021-42743 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-42743?

Upgrade splunk to 8.1.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-42743

HIGH

8.8

CVSS v3

NVD

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.

CWE-427

How to fix

Remediation Available

splunkNVD

Affected:< 8.1.1Fixed in:8.1.1CVE-2021-42743derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

splunk.com

Related Vulnerabilities

Other CWE-427 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-27955	Critical	9.8	83%	-	-
CVE-2017-6517	Critical	9.8	46%	-	-
CVE-2020-3153	Medium	6.5	28%	KEV + Ransom	Fix
CVE-2024-48990	High	7.8	20%	-	Fix
CVE-2019-9491	High	7.8	13%	-	-
CVE-2020-3433	High	7.8	10%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.