CVEvulnerability

CVE-2026-21258

5.5 MEDIUM Published 2026-02-10 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-02-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weaknesses
CWE-125, CWE-20

Description

Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Affected configurations

• microsoft 365 apps • microsoft excel 2016 • microsoft office 2019 • microsoft office long term servicing channel 2021 • microsoft office long term servicing channel 2024 • microsoft office online server (< 16.0.10417.20097)

Related

Weakness · CWE (2)

  • CWE-125 Out-of-bounds Read weakness
  • CWE-20 Improper Input Validation weakness

References