CVE-2026-44823

High

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

secure@microsoft.com·CWE-197·Published 2026-06-09

CVSS

7.8

EPSS

0.00

KEV

Exploits

cve.orgen

121 chars

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

NVDen

121 chars

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

Version	Type	Source	Base	Exp	Impact	Vector
3.1	Primary	NVD	7.8	1.8	5.9	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1	Primary	cve.org	7.8	—	—	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C