What is CVE-2026-105715?

CVE-2026-105715 is a high-severity vulnerability in Microsoft 365 Apps For Enterprise, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-10-13.

How severe is CVE-2026-105715?

High severity. CVSS v3 base score is 7.5 out of 10.

Use After Free in Microsoft 365 Apps For Enterprise

CVE-2026-105715

Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

Vulnerability class: Integer Overflow

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Microsoft Office Word Remote Code Execution Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-105715?: CVE-2026-105715 is a high-severity vulnerability in Microsoft 365 Apps For Enterprise, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-10-13.
How severe is CVE-2026-105715?: High severity. CVSS v3 base score is 7.5 out of 10.