cbcvebase.
CVE-2026-42832
published 2026-05-12

CVE-2026-42832: Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

PriorityP428medium5.5CVSS 3.1
AVLACLPRLUINSUCNIHAN
EPSS
0.22%
12.8th percentile
Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

Affected

8 ranges
VendorProductVersion rangeFixed in
microsoftexcel< 16.0.19822.2019016.0.19822.20190
microsoftmicrosoft_excel_for_android>= 16.0.0.0 < 16.0.19822.2019016.0.19822.20190
microsoftmicrosoft_office_ltsc_for_mac_2021>= 16.0.1 < 16.109.2605101916.109.26051019
microsoftmicrosoft_office_ltsc_for_mac_2024>= 16.0.0 < 16.109.2605101916.109.26051019
microsoftmicrosoft_word_for_android>= 16.0.0.0 < 16.0.19822.2019016.0.19822.20190
microsoftoffice
microsoftoffice_long_term_servicing_channel
microsoftword< 16.0.19822.2019016.0.19822.20190
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.