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Suse CVE-2026-62432

| EUVDEUVD-2026-49785 HIGH
Race Condition (CWE-362)
2026-07-28 security@xen.org GHSA-92f9-q54w-fxm8
7.3
CVSS 3.1 · Vendor: xen
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Severity by source

Vendor (xen) PRIMARY
7.3 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SUSE
8.5 HIGH
AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H

Primary rating from Vendor (xen).

CVSS VectorVendor: xen

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Jul 28, 2026 - 21:00 vuln.today
CVE Published
Jul 28, 2026 - 13:19 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 28, 2026 - 13:19 cve.org
HIGH 7.3

DescriptionCVE.org

The EVTCHNOP_expand_array hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP_reset, resulting in dereferencing a NULL pointer.

AnalysisAI

We are tasked to produce a comprehensive analysis JSON for CVE-2026-62432. We must synthesize all provided data: CVE description, CVSS, tags, SSVC, references, etc. The output must be plain-text strings per field, no arrays, no markdown.

First, parse the input:

  • CVE ID: CVE-2026-62432
  • Description: "The EVTCHNOP_expand_array hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP_reset, resulting in dereferencing a NULL pointer."
  • CVSS: 7.3, vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CWE: CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'))
  • Reported by: security@xen.org
  • Tags: Denial Of Service, Race Condition
  • SSVC: Exploitation: none, Automatable: yes, Technical Impact: partial
  • ENISA EUVD ID: EUVD-2026-49785
  • References include xenbits advisory, NVD, oss-security. No listed KEV status, no POC mention, no explicit patch version. The patch data is missing (we need to check references? Not provided explicitly. We must infer from multiple sources. The description mentions xen and hypercall, so it's a Xen hypervisor vulnerability.

We need to fill out each field. Let's systematically analyze.

  • product_name: From description, "EVTCHNOP_expand_array hypercall" implies Xen hypervisor. The vulnerability is in Xen's event channel mechanism. So product is "Xen Hypervisor". Could also say "Xen", but "Xen Hypervisor" is 2 words. According to rule "1-3 words ONLY", "Xen Hypervisor" fits.
  • summary: Must be 2-3 sentence plain-language synthesis. Not copy description. Start with impact verb and product. Example: "Race condition in Xen Hypervisor can lead to denial of service via NULL pointer dereference." But also mention what attacker can do. The CVSS suggests partial impacts in C/I/A, so maybe more than DoS? But tags say Denial Of Service, Race Condition, and description says dereferencing NULL pointer, so likely denial of service (sys

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Fixed
SUSE Linux Enterprise Micro 5.3 Fixed

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CVE-2026-62432 vulnerability details – vuln.today

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