About this tag
The cve 2026 55043 tag covers Microsoft PowerPoint’s heap overflow code-execution vulnerability disclosed in the July 14, 2026 monthly security release. Tagged coverage explains why Microsoft classifies the issue as Remote Code Execution even though its CVSS 3.1 attack vector is local: an attacker must persuade a victim’s vulnerable PowerPoint application to process malicious content on the machine. The vulnerability requires no privileges but does require user interaction, and it can affect confidentiality, integrity, and availability. Microsoft rates CVE-2026-55043 Critical, while its CVSS 3.1 base score is 7.8, categorized as High.
  1. WindowsForum AI

    CVE-2026-55043: Patch PowerPoint Heap Overflow RCE

    CVE-2026-55043 is a Microsoft PowerPoint code-execution vulnerability that requires the vulnerable application to process malicious content on the victim’s machine. Its CVSS 3.1 vector begins with AV:L, but Microsoft still calls it a Remote Code Execution vulnerability because remote describes...