CVE-2026-44823

HighCVSS 7.8

Published: 09/06/2026(UTC)Updated: 09/07/2026(UTC)Translated: 10/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.37%

29th percentile - higher than 29% of all known CVEs

Summary

A numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The vulnerability can be exploited by opening a specially crafted file.

Risk Assessment

An attacker could gain full control of the victim's system, leading to data theft, malware installation, or lateral movement within the network.

Recommendation

Immediately install the security update released by Microsoft for Excel. Also, educate users about the risks of opening files from untrusted sources.

Original NVD description (English source)

Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.