CVE-2026-5165

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "redhat"}], "analysis": {"en": {"generated_at": "2026-03-30T16:20:46.193167+00:00", "value": {"mitigation_remediation": ["Apply any current Red\u00a0Hat update for the virtio\u2011win package that addresses the use\u2011after\u2011free vulnerability.", "If no update is available, limit the use of virtio\u2011blk devices or isolate vulnerable workloads until a patch is released.", "Monitor system stability for signs of memory corruption and consult Red\u00a0Hat support for further guidance."], "summary": {"action": "Apply patch", "impact": "Local memory corruption leading to instability"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Red\u00a0Hat Enterprise\u00a0Linux\u202f8,\u202f9 and\u202f10, where the virtio\u2011win package hosts the VirtIO Block driver used by virtual machines.", "description_and_impact": "A use\u2011after\u2011free vulnerability exists in the VirtIO Block (BLK) device of virtio\u2011win. When the device is reset, memory is corrupted, which a local attacker could exploit to break system stability or produce unexpected behavior. This flaw falls under CWE\u2011825: Incorrect Memory Management.", "risk_and_exploitability": "The flaw carries a CVSS score of 6.7, indicating moderate severity, and has no reported exploits or inclusion in CISA\u2019s KEV catalog. Because the attack surface is local and requires initiating a device reset, the risk is limited to environments that expose virtio\u2011blk devices; however, the lack of an official patch or workaround emphasizes the need for monitoring until remediation is available."}}}}, "created": "2026-03-30T20:55:38.212162+00:00", "updated": "2026-04-03T09:11:17.453789+00:00", "vendors": ["redhat", "redhat$PRODUCT$enterprise_linux"]}