How severe is CVE-2024-45772?

CVE-2024-45772 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-45772 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-45772?

CVE-2024-45772 affects Apache Lucene Replicator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-45772?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-45772 have an EU (EUVD) identifier?

Yes. CVE-2024-45772 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2793.

When was CVE-2024-45772 published?

CVE-2024-45772 was published on 2024-09-30 and last updated on 2026-06-17.

CVE-2024-45772

CVE-2024-45772 is a medium-severity vulnerability in Apache Lucene Replicator with a CVSS 3.x base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Medium (CVSS 3.x base score 5.1)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-2793
Weakness: CWE-502
Affected product: Apache Lucene Replicator
Published: 2024-09-30
Last modified: 2026-06-17

Description

Deserialization of Untrusted Data vulnerability in Apache Lucene Replicator. This issue affects Apache Lucene's replicator module: from 4.4.0 before 9.12.0. The deprecated org.apache.lucene.replicator.http package is affected. The org.apache.lucene.replicator.nrt package is not affected. Users are recommended to upgrade to version 9.12.0, which fixes the issue. The deserialization can only be triggered if users actively deploy an network-accessible implementation and a corresponding client using a HTTP library that uses the API (e.g., a custom servlet and HTTPClient). Java serialization filters (such as -Djdk.serialFilter='!*' on the commandline) can mitigate the issue on vulnerable versions without impacting functionality.

Frequently asked questions

What is CVE-2024-45772?: Deserialization of Untrusted Data vulnerability in Apache Lucene Replicator. This issue affects Apache Lucene's replicator module: from 4.4.0 before 9.12.0. The deprecated org.apache.lucene.replicator.http package is affected. The org.apache.lucene.replicator.nrt package is not affected. Users are recommended to upgrade to version 9.12.0, which fixes the issue. The deserialization can only be triggered if users actively deploy an network-accessible implementation and a corresponding client using a HTTP library that uses the API (e.g., a custom servlet and HTTPClient). Java serialization filters (such as -Djdk.serialFilter='!*' on the commandline) can mitigate the issue on vulnerable versions without impacting functionality.
How severe is CVE-2024-45772?: CVE-2024-45772 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-45772 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-45772?: CVE-2024-45772 affects Apache Lucene Replicator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-45772?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-45772 have an EU (EUVD) identifier?: Yes. CVE-2024-45772 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2793.
When was CVE-2024-45772 published?: CVE-2024-45772 was published on 2024-09-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:lucene_replicator:*:*:*:*:*:*:*:*

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