Skip to content

Vulnerabilities of Microsoft Microsoft Office LTSC 2021

Is your version affected?

CVE Summary Score Published
CVE-2026-97744 Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally 5.5 Medium Oct 13, 2026
CVE-2026-97016 Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-96995 Stack-based buffer overflow in Microsoft Office Word allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-96996 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Oct 13, 2026
CVE-2026-97012 Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-88175 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-88167 Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-88178 Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-88169 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-88197 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-88201 Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-88202 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-88196 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-70300 Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-70301 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-83891 Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-88153 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-88156 Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-88145 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-88150 Use of uninitialized resource in Microsoft Office Word allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-88151 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-70276 Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-70291 Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-70302 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-70220 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Oct 13, 2026

Other Microsoft products