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CVSS 9.8 CRITICAL Security Vulnerability

CVE-2026-14266: 7-Zip Vulnerability Exposes Millions of Users to Remote Code Execution Risk

A newly disclosed vulnerability in 7-Zip, one of the most widely used open-source file archiving tools, could allow remote attackers to execute arbitrary code on affected systems. Tracked as CVE-2026-14266, the flaw ste…

9.8CVSS Score
CRITICALSeverity
NOCISA KEV
Security VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-14266
VendorUnknown Vendor
Affected ProductUnknown Product
Vulnerability TypeSecurity Vulnerability
CVSS Score9.8 (CRITICAL)
Actively Exploited❌ No known exploitation
Patch StatusPending Vendor Disclosure
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via sentinel_apex)

🔬 Technical Analysis

A newly disclosed vulnerability in 7-Zip, one of the most widely used open-source file archiving tools, could allow remote attackers to execute arbitrary code on affected systems. Tracked as CVE-2026-14266, the flaw stems from improper handling of XZ chunked data and has been addressed in the latest software update. The vulnerability resides in how 7-Zip […] The post 7-Zip Vulnerability Exposes Millions of Users to Remote Code Execution Risk appeared first on

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