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CVE-2026-20957
- CVSS 3.1
- 7.8 high
- EPSS
- <1%p40
- Published
- ·
- Modified
Description · NVD
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
- Vendors
- microsoft
- Products
- 365 apps, excel, office, office long term servicing channel, office online server
- Weakness
- CWE-122, CWE-191
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H