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Microsoft Office Remote Code Execution Vulnerability

🗓️ 12 May 2026 14:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 37 Views

Microsoft Office remote code execution via heap-based buffer overflow enables local code execution.

Related
Detection
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-42831
12 May 202616:59
–attackerkb
avleonov
Information Security Automation
May Microsoft Patch Tuesday
19 May 202608:00
–avleonov
bdu_fstec
BDU FSTEC
Microsoft Office Buffer Overflow
14 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-42831
12 May 202615:53
–circl
cnnvd
CNNVD
Microsoft Office security vulnerabilities
12 May 202600:00
–cnnvd
cnvd
CNVD
Microsoft Office Code Execution Vulnerability (CNVD-2026-23632)
18 May 202600:00
–cnvd
cve
CVE
CVE-2026-42831
12 May 202616:59
–cve
cvelist
Cvelist
CVE-2026-42831 Microsoft Office Remote Code Execution Vulnerability
12 May 202616:59
–cvelist
euvd
EUVD
EUVD-2026-29711
12 May 202618:30
–euvd
kaspersky
Kaspersky
KLA91035 Multiple vulnerabilities in Microsoft Office
12 May 202600:00
–kaspersky
Rows per page
Vulners
Node
OR
microsoftoffice_macos_2024Range<16.109.26051019ltsc
microsoftofficeRange<16.0.19822.20190android
microsoftoffice_macos_2021Range<16.109.26051019ltsc

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12 May 2026 14:00Current
7.8High risk
Vulners AI Score7.8
CVSS 3.17.8
EPSS0.00437
SSVC
37