CVE-2026-70310

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2026-08-11

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• microsoft:365_apps
• microsoft:microsoft_365
• microsoft:office_2019
• microsoft:office_2021
• microsoft:office_2024
• microsoft:word

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70310

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