Red Hat Security Advisory: Red Hat JBoss Web Server 6.1.2 release and security update
Red Hat JBoss Web Server 6.1.2 includes security updates addressing two denial of service vulnerabilities in the Apache Tomcat component. These vulnerabilities are identified as CVE-2025-52520 and CVE-2025-48989, the latter involving an HTTP/2 "MadeYouReset" DoS attack through HTTP/2 control frames. The update replaces version 6.1.1 and includes bug fixes and component upgrades. Red Hat rates the security impact as Important. No CVSS scores are provided in the advisory.
AI Analysis
Technical Summary
Red Hat JBoss Web Server 6.1.2 is a security update release replacing version 6.1.1. It addresses two denial of service vulnerabilities in the Apache Tomcat servlet container component: CVE-2025-52520 and CVE-2025-48989. The latter is described as a "MadeYouReset" DoS attack exploiting HTTP/2 control frames. The advisory does not provide CVSS scores but classifies the impact as Important. The update includes bug fixes, enhancements, and component upgrades documented in the release notes. The update is available for Red Hat Enterprise Linux 8, 9, 10, and Windows Server platforms.
Potential Impact
The vulnerabilities allow denial of service attacks against the Apache Tomcat component within Red Hat JBoss Web Server, potentially disrupting hosted Java web applications. The advisory classifies the security impact as Important, indicating a high severity but not critical. There is no indication of known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released Red Hat JBoss Web Server 6.1.2 as a replacement for version 6.1.1, which includes fixes for these vulnerabilities. Users should back up their existing installations and apply the update to remediate the issues. The update is available from Red Hat's customer portal and requires login to download. No alternative mitigations or workarounds are specified in the advisory.
Red Hat Security Advisory: Red Hat JBoss Web Server 6.1.2 release and security update
Description
Red Hat JBoss Web Server 6.1.2 includes security updates addressing two denial of service vulnerabilities in the Apache Tomcat component. These vulnerabilities are identified as CVE-2025-52520 and CVE-2025-48989, the latter involving an HTTP/2 "MadeYouReset" DoS attack through HTTP/2 control frames. The update replaces version 6.1.1 and includes bug fixes and component upgrades. Red Hat rates the security impact as Important. No CVSS scores are provided in the advisory.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat JBoss Web Server 6.1.2 is a security update release replacing version 6.1.1. It addresses two denial of service vulnerabilities in the Apache Tomcat servlet container component: CVE-2025-52520 and CVE-2025-48989. The latter is described as a "MadeYouReset" DoS attack exploiting HTTP/2 control frames. The advisory does not provide CVSS scores but classifies the impact as Important. The update includes bug fixes, enhancements, and component upgrades documented in the release notes. The update is available for Red Hat Enterprise Linux 8, 9, 10, and Windows Server platforms.
Potential Impact
The vulnerabilities allow denial of service attacks against the Apache Tomcat component within Red Hat JBoss Web Server, potentially disrupting hosted Java web applications. The advisory classifies the security impact as Important, indicating a high severity but not critical. There is no indication of known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released Red Hat JBoss Web Server 6.1.2 as a replacement for version 6.1.1, which includes fixes for these vulnerabilities. Users should back up their existing installations and apply the update to remediate the issues. The update is available from Red Hat's customer portal and requires login to download. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:13686
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-52520"]
Threat ID: 6a419cb727e9c79719abd8b1
Added to database: 06/28/2026, 22:14:15 UTC
Last enriched: 08/04/2026, 15:50:32 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 36
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