Critical Alert 3 Active Exploits Detected Today

CVE-2025-39964 — Linux Kernel Race Condition Vulnerability →
CVE-2026-53266 — Linux Kernel Out-of-Bounds Write Vulnerability →
CVE-2025-39682 — Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability →
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September 20, 2026

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CVE-2026-6205NVD

Description

An external control of file name or path vulnerability in Upload API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to write arbitrary files and conduct denial-of-service attacks.
Severity Level
HIGH (8.1)
Published Date
18/09/2026
Last Modified
18/09/2026
Exploitation Status
????
EPSS Score
0.32% (percentile 25.0%)

CVSS Base Metrics

CVSS v3 (3.1)
HIGH 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weaknesses (CWE)

CWE-73 - External Control of File Name or Path

Affected & Patched Versions

ProductAffected VersionsPatched Version
Synology DiskStation Manager (DSM)7.4 - < 7.4-90075, 7.3.2 - < 7.3.2-86009-4, 7.2.2 - < 7.2.2-72806-9, 7.2.1 - < 7.2.1-69057-12N/A

References