CVE-2026-97773

HighCVSS 8.8/10Last modified Oct 15, 2026

Description

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 15, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-977747.0Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges localCVE-2026-977758.8Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-977768.8Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-977778.8Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-977788.8Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-977796.5Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-97787.2ATEN Unizon ImportDeviceList Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute CVE-2026-977808.8Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-977818.8Improper neutralization of special elements used in a command ('command injection') in Microsoft Office OneNote allows an unauthorized attacCVE-2026-977826.8Observable discrepancy in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.CVE-2026-977836.1Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized aCVE-2026-9778510.0Improper authentication in AAD App Proxy allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-97773: High severity, CVSS 8.8 | Vulnix