Red Hat Security Advisory: kernel security update
Red Hat has released a moderate severity security advisory addressing two vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9. The first vulnerability (CVE-2025-39818) involves incorrect pointer arithmetic in the intel-thc HID driver. The second (CVE-2025-68800) is a use-after-free flaw in the mlxsw spectrum_mr component affecting multicast route statistics. These issues are fixed in updated kernel packages, and a system reboot is required to apply the updates.
AI Analysis
Technical Summary
This advisory covers two kernel vulnerabilities in Red Hat Enterprise Linux 9. CVE-2025-39818 is an incorrect pointer arithmetic issue in the intel-thc HID driver related to I2C register saving. CVE-2025-68800 is a use-after-free vulnerability in the mlxsw spectrum_mr module when updating multicast route statistics. Both vulnerabilities have been addressed in updated kernel packages distributed by Red Hat. The advisory rates the impact as moderate and recommends applying the update and rebooting the system to activate the fixes.
Potential Impact
The vulnerabilities could lead to potential memory corruption issues due to incorrect pointer arithmetic and use-after-free conditions in kernel components. This may affect system stability or security depending on exploitation, but no known exploits are reported in the wild. The impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated kernel packages that fix these vulnerabilities. Users should apply the kernel update as per Red Hat's instructions and reboot affected systems to ensure the fixes take effect. For detailed update procedures, refer to https://access.redhat.com/articles/11258. No additional mitigation is indicated by the vendor.
Red Hat Security Advisory: kernel security update
Description
Red Hat has released a moderate severity security advisory addressing two vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9. The first vulnerability (CVE-2025-39818) involves incorrect pointer arithmetic in the intel-thc HID driver. The second (CVE-2025-68800) is a use-after-free flaw in the mlxsw spectrum_mr component affecting multicast route statistics. These issues are fixed in updated kernel packages, and a system reboot is required to apply the updates.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two kernel vulnerabilities in Red Hat Enterprise Linux 9. CVE-2025-39818 is an incorrect pointer arithmetic issue in the intel-thc HID driver related to I2C register saving. CVE-2025-68800 is a use-after-free vulnerability in the mlxsw spectrum_mr module when updating multicast route statistics. Both vulnerabilities have been addressed in updated kernel packages distributed by Red Hat. The advisory rates the impact as moderate and recommends applying the update and rebooting the system to activate the fixes.
Potential Impact
The vulnerabilities could lead to potential memory corruption issues due to incorrect pointer arithmetic and use-after-free conditions in kernel components. This may affect system stability or security depending on exploitation, but no known exploits are reported in the wild. The impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated kernel packages that fix these vulnerabilities. Users should apply the kernel update as per Red Hat's instructions and reboot affected systems to ensure the fixes take effect. For detailed update procedures, refer to https://access.redhat.com/articles/11258. No additional mitigation is indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4759
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-68800"]
- Cvss Version
- null
Threat ID: 6a32cf499f87a2db092a666b
Added to database: 6/17/2026, 4:46:01 PM
Last enriched: 6/17/2026, 5:06:37 PM
Last updated: 6/17/2026, 6:24:36 PM
Views: 2
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