Review reviewHigh

CVE-2026-47635

Microsoft Microsoft Office LTSC 2024, office 2024

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

CVSS
8.4
EPSS
0.33%
25.9% percentile
CISA KEV
Not listed
Published
2026.06.10
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.33%
Technical severityCVSS 8.4

Vulnerability overview

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

Affected product and versions

Product
Microsoft Microsoft Office LTSC 2024, office 2024
Affected versions
>= 16.0.0 < https://aka.ms/OfficeSecurityReleases
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Microsoft Office LTSC 2024, office 2024 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-122
CVE-2026-47635 — Microsoft Microsoft Office LTSC 2024, office 2024 | SECUFOCUS NOW