Known vulnerabilities in Red Hat Enterprise Linux 6

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CVE list

CVE	Summary	Score	Published
CVE-2026-28859	The issue was addressed with improved memory handling	4.3 Medium	Mar 25, 2026
CVE-2026-28861	A logic issue was addressed with improved state management	4.3 Medium	Mar 25, 2026
CVE-2026-28857	The issue was addressed with improved memory handling	6.5 Medium	Mar 25, 2026
CVE-2025-67030	Directory Traversal vulnerability in the extractFile method of org.codehaus.plexus.util.Expand in plexus-utils before…	8.8 High	Mar 25, 2026
CVE-2026-4371	A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside…	7.4 High	Mar 24, 2026
CVE-2026-4775	Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing	7.8 High	Mar 24, 2026
CVE-2026-4721	Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and…	9.8 Critical	Mar 24, 2026
CVE-2026-4720	Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148	9.8 Critical	Mar 24, 2026
CVE-2026-4729	Memory safety bugs present in Firefox 148 and Thunderbird 148	9.8 Critical	Mar 24, 2026
CVE-2026-4699	Incorrect boundary conditions in the Layout: Text and Fonts component	7.5 High	Mar 24, 2026
CVE-2026-4700	Mitigation bypass in the Networking: HTTP component	9.8 Critical	Mar 24, 2026
CVE-2026-4697	Incorrect boundary conditions in the Audio/Video: Web Codecs component	7.5 High	Mar 24, 2026
CVE-2026-4698	JIT miscompilation in the JavaScript Engine: JIT component	8.8 High	Mar 24, 2026
CVE-2026-4695	Incorrect boundary conditions in the Audio/Video: Web Codecs component	7.5 High	Mar 24, 2026
CVE-2026-4696	Use-after-free in the Layout: Text and Fonts component	9.8 Critical	Mar 24, 2026
CVE-2026-4693	Incorrect boundary conditions in the Audio/Video: Playback component	7.5 High	Mar 24, 2026
CVE-2026-4694	Incorrect boundary conditions, integer overflow in the Graphics component	7.5 High	Mar 24, 2026
CVE-2026-4691	Use-after-free in the CSS Parsing and Computation component	9.8 Critical	Mar 24, 2026
CVE-2026-4692	Sandbox escape in the Responsive Design Mode component	9.6 Critical	Mar 24, 2026
CVE-2026-4689	Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component	10.0 Critical	Mar 24, 2026
CVE-2026-4690	Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component	9.6 Critical	Mar 24, 2026
CVE-2026-4687	Sandbox escape due to incorrect boundary conditions in the Telemetry component	9.6 Critical	Mar 24, 2026
CVE-2026-4688	Sandbox escape due to use-after-free in the Disability Access APIs component	9.6 Critical	Mar 24, 2026
CVE-2026-4685	Incorrect boundary conditions in the Graphics: Canvas2D component	7.5 High	Mar 24, 2026
CVE-2026-4686	Incorrect boundary conditions in the Graphics: Canvas2D component	7.5 High	Mar 24, 2026

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