A new Macrium Reflect Free v8.0.7690 (released 11-Oct-2023) was offered today when I launched v8.0.7279 and went to Other Tasks | Check for Updates. The release notes indicate a patch for CVE-2023-43896 is included to fix a vulnerability in psmounterex.sys.
Kudos to SUMo (Software Update Monitor) for detecting this available update today. Sadly, SUMo will not be supported after 31-Oct-2023 when it reaches EOL.
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Dell Inspiron 5584 * 64-bit Win 10 Pro v22H2 build 19045.3570 * Firefox v118.0.2 * Microsoft Defender v4.18.23090.2008-1.1.23090.2007 * Malwarebytes Premium v4.6.4.286-1.0.2163 * Macrium Reflect Free v8.0.7690 * SUMo Free Portable v5.17.10.542