CVE-2026-81391Medium· 5.5▾ SunlitUse of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
0.4% → 0.5%
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
365_appsexcel = 2016microsoft_365office_2016office_2019office_2021office_2024Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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