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  • U.S. CISA adds Linux Kernel flaw to its Known Exploited Vulnerabilities catalog

U.S. CISA adds Linux Kernel flaw to its Known Exploited Vulnerabilities catalog

Pierluigi Paganini June 18, 2025

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Linux Kernel vulnerability to its Known Exploited Vulnerabilities catalog.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Google Chromium V8 Out-of-Bounds Read and Write Vulnerability, tracked as CVE-2023-0386, to its Known Exploited Vulnerabilities (KEV) catalog.

The vulnerability, CVE-2023-0386 (CVSS score: 7.8), is an improper ownership vulnerability in the Linux kernel that can be exploited to escalate privileges on vulnerable systems.

“A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount.” reads the advisory “This uid mapping bug allows a local user to escalate their privileges on the system.”

According to Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities, FCEB agencies have to address the identified vulnerabilities by the due date to protect their networks against attacks exploiting the flaws in the catalog.

Experts also recommend private organizations review the Catalog and address the vulnerabilities in their infrastructure.

CISA orders federal agencies to fix the vulnerabilities by July 8, 2025.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, CISA)


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