CVE-2026-5165: Expired Pointer Dereference in Red Hat Red Hat Enterprise Linux 10
A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability. This issue could allow a local attacker to corrupt system memory, potentially leading to system instability or unexpected behavior.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the VirtIO Block (BLK) device driver within virtio-win on Red Hat Enterprise Linux 10. When the device undergoes a reset, it fails to correctly manage memory, resulting in expired pointer dereference. This memory corruption flaw could be exploited by a local attacker with high privileges to cause system instability or unexpected behavior. The CVSS 3.1 base score is 6.7 (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), reflecting the need for local high-privilege access and the potential for high impact on confidentiality, integrity, and availability.
Potential Impact
A local attacker with high privileges can exploit this vulnerability to corrupt system memory, which may lead to system instability or unexpected behavior. The impact affects confidentiality, integrity, and availability of the affected system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-5165 for current remediation guidance. Until an official fix is available, limit local access to trusted users with high privileges to reduce risk. Monitor the vendor advisory for updates on patches or workarounds.
CVE-2026-5165: Expired Pointer Dereference in Red Hat Red Hat Enterprise Linux 10
Description
A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability. This issue could allow a local attacker to corrupt system memory, potentially leading to system instability or unexpected behavior.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the VirtIO Block (BLK) device driver within virtio-win on Red Hat Enterprise Linux 10. When the device undergoes a reset, it fails to correctly manage memory, resulting in expired pointer dereference. This memory corruption flaw could be exploited by a local attacker with high privileges to cause system instability or unexpected behavior. The CVSS 3.1 base score is 6.7 (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), reflecting the need for local high-privilege access and the potential for high impact on confidentiality, integrity, and availability.
Potential Impact
A local attacker with high privileges can exploit this vulnerability to corrupt system memory, which may lead to system instability or unexpected behavior. The impact affects confidentiality, integrity, and availability of the affected system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-5165 for current remediation guidance. Until an official fix is available, limit local access to trusted users with high privileges to reduce risk. Monitor the vendor advisory for updates on patches or workarounds.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-03-30T14:51:14.677Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-5165","vendor":"Red Hat"}]
Threat ID: 69ca9568e6bfc5ba1d43cfdb
Added to database: 3/30/2026, 3:23:20 PM
Last enriched: 4/29/2026, 10:32:48 AM
Last updated: 5/15/2026, 4:09:46 AM
Views: 77
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