Is CVE-2024-45216 in the CISA KEV catalog?

No. CVE-2024-45216 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-45216?

CVE-2024-45216 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-45216?

CVE-2024-45216 has an EPSS score of 90.71% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-45216?

Upgrade solr to 9.7.0 or later.

CVE & CISA-KEV Catalog

CVE-2024-45216

CRITICALEPSS 100th pctl

9.8

CVSS v3

NVD

Description

Improper Authentication vulnerability in Apache Solr. Solr instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is used, are vulnerable to Authentication bypass. A fake ending at the end of any Solr API URL path, will allow requests to skip Authentication while maintaining the API contract with the original URL Path. This fake ending looks like an unprotected API path, however it is stripped off internally after authentication but before API routing. This issue affects Apache Solr: from 5.3.0 before 8.11.4, from 9.0.0 before 9.7.0. Users are recommended to upgrade to version 9.7.0, or 8.11.4, which fix the issue.

CWE-287Improper Authentication CWE-863Incorrect Authorization

How to fix

Remediation Available

solrNVD

Affected:>= 9.0.0, < 9.7.0Fixed in:9.7.0CVE-2024-45216derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

90.71%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Vendor Advisory1

solr.apache.org

Mailing List1

openwall.com

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	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 2025-07-01.