CVEvulnerability

CVE-2026-45469

7.8 HIGH Published 2026-06-09 Modified 2026-07-23 Official page ↗
Status
Analyzed
Published
2026-06-09
Last modified
2026-07-23
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-122, CWE-191

Description

Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected configurations

• microsoft 365 apps • microsoft excel 2016 • microsoft microsoft 365 • microsoft office 2019 • microsoft office 2021 • microsoft office 2024 • microsoft office online server

Related

Weakness · CWE (2)

  • CWE-122 Heap-based Buffer Overflow weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound) weakness

References