Is CVE-2025-27819 actively exploited?

CVE-2025-27819 has no public evidence of in-the-wild exploitation as of 2025-07-11.

What is the CVSS score for CVE-2025-27819?

CVE-2025-27819 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2025-27819?

Patch guidance is available from apache security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-27819.

Fix CVE-2025-27819 - HIGH apache kafka

Description

In CVE-2023-25194, we announced the RCE/Denial of service attack via SASL JAAS JndiLoginModule configuration in Kafka Connect API. But not only Kafka Connect API is vulnerable to this attack, the Apache Kafka brokers also have this vulnerability. To exploit this vulnerability, the attacker needs to be able to connect to the Kafka cluster and have the AlterConfigs permission on the cluster resource. Since Apache Kafka 3.4.0, we have added a system property ("-Dorg.apache.kafka.disallowed.login.modules") to disable the problematic login modules usage in SASL JAAS configuration. Also by default "com.sun.security.auth.module.JndiLoginModule" is disabled in Apache Kafka 3.4.0, and "com.sun.security.auth.module.JndiLoginModule,com.sun.security.auth.module.LdapLoginModule" is disabled by default in in Apache Kafka 3.9.1/4.0.0

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: APACHE
Published: 6/10/2025
Last Modified: 7/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-27819

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary