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EPSS 0.1%top 97%

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

0
High
Published: Sat Jun 20 2026 (06/20/2026, 00:28:45 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10. The update fixes several use-after-free, buffer overflow, double free, and other memory corruption issues across various kernel subsystems including CAN, MPTCP, RXRPC, Xen, Bluetooth, networking, and WiFi components. These vulnerabilities have been assigned CVE identifiers and are rated with a high security impact. The advisory also includes bug fixes and enhancements unrelated to security. Systems must be updated and rebooted to apply these fixes.

Affected software

Affected versions
Red HatRed Hat Enterprise LinuxRed Hat Enterprise Linux AppStream (v. 10)Red Hat Enterprise Linux BaseOS (v. 10)Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/20/2026, 16:45:24 UTC

Technical Analysis

The advisory covers a set of security fixes for the Linux kernel in Red Hat Enterprise Linux 10, addressing 15 CVEs related to memory safety issues such as use-after-free (CVE-2026-31474, CVE-2026-31669, CVE-2026-43056, CVE-2026-46056), buffer overflows (CVE-2026-31772, CVE-2026-31786), double free (CVE-2026-31787), and other kernel vulnerabilities affecting subsystems like CAN isotp, MPTCP, RXRPC, Xen hypervisor interface, Bluetooth, crypto, and WiFi mac80211. These flaws could potentially lead to system instability or privilege escalation if exploited. The advisory includes detailed fixes and requires a system reboot to take effect. No known exploits in the wild have been reported at this time.

Potential Impact

The vulnerabilities fixed in this update impact the Linux kernel core components, potentially allowing attackers to cause use-after-free conditions, buffer overflows, double frees, and other memory corruption issues. Such flaws can lead to system crashes, denial of service, or privilege escalation. The advisory rates the overall security impact as Important (high severity). No known active exploits have been reported. The update improves kernel stability and security by addressing these critical memory safety issues.

Mitigation Recommendations

Red Hat has released an official kernel update for Red Hat Enterprise Linux 10 that addresses these vulnerabilities. Users should apply the update promptly and reboot their systems to ensure the fixes take effect. The vendor manages remediation through this official patch. No additional mitigations are indicated beyond applying the update and rebooting.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2026:27288
Cve Count
15
Additional Cves
["CVE-2026-31641","CVE-2026-31669","CVE-2026-31772","CVE-2026-31786","CVE-2026-31787","CVE-2026-43056","CVE-2026-43260","CVE-2026-43330","CVE-2026-46056","CVE-2026-46125","CVE-2026-46152","CVE-2026-46166","CVE-2026-46173","CVE-2026-46331"]
Cvss Version
null

Threat ID: 6a36c23a49568db4e20a1cda

Added to database: 6/20/2026, 4:39:22 PM

Last enriched: 6/20/2026, 4:45:24 PM

Last updated: 6/20/2026, 6:40:42 PM

Views: 9

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