Is It On KEV?

Microsoft Office

YES - ON THE CISA KEV LIST
CVE-2007-0671

Microsoft Office Excel Remote Code Execution Vulnerability

CISA catalog due date2025-09-02
overdue since 2025-09-02
EPSS exploit probability (next 30 days)44.1% · 99percentile
From CVE publication to KEV listing6765 days (2007-02-03 → 2025-08-12)
Remediation window (KEV listing to due date)21 days
Days on the KEV list456 days
Date added to KEV2025-08-12
Known ransomware campaign useUnknown
VendorMicrosoft
ProductOffice
Weaknesses (CWE)n/a

Microsoft: 391 entries (22.0% of all KEV entries are from this vendor); 41 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

Microsoft Office Excel contains a remote code execution vulnerability that can be exploited when a specially crafted Excel file is opened. This malicious file could be delivered as an email attachment or hosted on a malicious website. An attacker could leverage this vulnerability by creating a specially crafted Excel file, which, when opened, allowing an attacker to execute remote code on the affected system.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://learn.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015 ; https://nvd.nist.gov/vuln/detail/CVE-2007-0671

References

Other KEV entries for this vendor: Microsoft

Microsoft - Vendors with KEV entries

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