Red Hat Security Advisory: qt5-qtbase security update
Qt is a software toolkit for developing applications. This package contains base tools, like string, xml, and network handling. Security Fix(es): * qt5: qt6: QtCore Assertion Failure Denial of Service (CVE-2025-5455) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
CVE-2025-5455 is a vulnerability in the QtCore component of the qt6-qtbase package, causing an assertion failure that results in denial of service. This affects Red Hat Enterprise Linux 10 and related CodeReady Linux Builder variants across multiple architectures (x86_64, s390x, ppc64le, aarch64). Red Hat Product Security has rated this issue as moderate severity and has issued an official security advisory (RHSA-2025:9486) with updated packages to fix the problem. The update version is qt6-qtbase-6.8.1-9.el10_0. No CVSS score is provided in the advisory. The vulnerability is tracked under CWE-617 (Reachable Assertion).
Potential Impact
The vulnerability allows an attacker to cause an assertion failure in the QtCore component, leading to denial of service conditions in applications using the affected qt6-qtbase package. This can disrupt normal application operation but does not indicate code execution or data compromise from the provided information.
Mitigation Recommendations
Red Hat has released an official security update for qt6-qtbase (version 6.8.1-9.el10_0) that addresses CVE-2025-5455. Users of Red Hat Enterprise Linux 10 and related variants should apply this update promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. No additional mitigations are indicated or required beyond applying the official patch.
Red Hat Security Advisory: qt5-qtbase security update
Description
Qt is a software toolkit for developing applications. This package contains base tools, like string, xml, and network handling. Security Fix(es): * qt5: qt6: QtCore Assertion Failure Denial of Service (CVE-2025-5455) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-5455 is a vulnerability in the QtCore component of the qt6-qtbase package, causing an assertion failure that results in denial of service. This affects Red Hat Enterprise Linux 10 and related CodeReady Linux Builder variants across multiple architectures (x86_64, s390x, ppc64le, aarch64). Red Hat Product Security has rated this issue as moderate severity and has issued an official security advisory (RHSA-2025:9486) with updated packages to fix the problem. The update version is qt6-qtbase-6.8.1-9.el10_0. No CVSS score is provided in the advisory. The vulnerability is tracked under CWE-617 (Reachable Assertion).
Potential Impact
The vulnerability allows an attacker to cause an assertion failure in the QtCore component, leading to denial of service conditions in applications using the affected qt6-qtbase package. This can disrupt normal application operation but does not indicate code execution or data compromise from the provided information.
Mitigation Recommendations
Red Hat has released an official security update for qt6-qtbase (version 6.8.1-9.el10_0) that addresses CVE-2025-5455. Users of Red Hat Enterprise Linux 10 and related variants should apply this update promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. No additional mitigations are indicated or required beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:9486
- Cve Count
- 1
Threat ID: 6a3da1cd4853345fc18234c5
Added to database: 06/25/2026, 21:46:53 UTC
Last enriched: 06/25/2026, 22:05:38 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 11
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