← Vulnerability feed

Vulnerability record · CVE-2026-47635 · published 9 June 2026

CVE-2026-47635: Microsoft office 2024 heap-based buffer overflow vulnerability

Microsoft · Office 2024

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

8.4 CVSS 3.1 High EPSS 0.36% · top 72.3% CWE-122 · Heap-based buffer overflow
8.4CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
23 Jul 2026Last modified by NVD

Description

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47635 Vendor Advisory

Track CVE-2026-47635 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-78509Microsoft 365 apps heap-based buffer overflow vulnerabilityHeap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.EPSS 0.97%8.8CVE-2026-81952Microsoft 365 apps heap-based buffer overflow vulnerabilityHeap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.EPSS 0.82%8.8CVE-2026-81385Microsoft 365 apps deserialization of untrusted data vulnerabilityDeserialization of untrusted data in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.EPSS 1.3%8.8CVE-2026-80080Microsoft 365 apps double free vulnerabilityDouble free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.EPSS 0.82%8.8CVE-2026-80085Microsoft 365 apps heap-based buffer overflow vulnerabilityHeap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.EPSS 0.82%8.8CVE-2026-78524Microsoft 365 apps out-of-bounds write vulnerabilityOut-of-bounds write in Microsoft Office allows an unauthorized attacker to execute code over a network.EPSS 0.82%8.8CVE-2026-78525Microsoft 365 apps use after free vulnerabilityUse after free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.EPSS 0.82%8.8CVE-2026-78526Microsoft 365 apps heap-based buffer overflow vulnerabilityHeap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.EPSS 0.82%

Source: NIST National Vulnerability Database (record CVE-2026-47635), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.