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Linux CVE-2026-64600

| EUVDEUVD-2026-47879 HIGH
Race Condition (CWE-362)
7.8
CVSS 3.1 · Vendor
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Severity by source

Vendor (CNA) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
7.5 HIGH

Local access and unprivileged account required (AV:L/PR:L); race condition adds complexity (AC:H); scope changes because writes land in root-owned files outside attacker's security domain (S:C); full confidentiality and integrity over any readable file on the volume (C:H/I:H); no availability impact.

3.1 AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
4.0 AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
SUSE
HIGH
qualitative
Red Hat
7.8 HIGH
qualitative

Primary rating from Vendor (CNA).

CVSS VectorVendor

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

Lifecycle Timeline

7
Analysis Updated
Jul 27, 2026 - 05:27 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jul 27, 2026 - 05:22 vuln.today
cvss_changed
CVSS changed
Jul 27, 2026 - 05:22 NVD
7.8 (HIGH)
Patch available
Jul 23, 2026 - 07:17 EUVD
Analysis Generated
Jul 22, 2026 - 18:20 vuln.today
CVE Published
Jul 22, 2026 - 16:49 oss-security
HIGH
CVE Published
Jul 22, 2026 - 16:49 oss-security
HIGH 7.8

Description PRE-NVD

Disclosed via oss-security. NVD scoring and full description are pending.

AnalysisAI

Information disclosure and potential data corruption in the Linux kernel's XFS filesystem can allow a local attacker with low privileges to achieve high integrity, confidentiality, and availability impact. The vulnerability resides in the reflink copy-on-write logic where stale data fork mappings are used after cycling the ILOCK, leading to inaccurate shared-extent tracking. No active exploitation or public exploit code has been identified at time of analysis, and a vendor patch is available.

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 16.0 Affected

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CVE-2026-64600 vulnerability details – vuln.today

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