CVE-2009-0238

UNKNOWNKnown Exploited

CISA Known Exploited Vulnerability

https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009 ; https://nvd.nist.gov/vuln/detail/CVE-2009-0238

Remediation deadline: April 28, 2026

Description

Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.

Timeline

Published:April 14th, 2026 12:00 AM

Last modified:April 14th, 2026 12:00 AM

Added to KEV:April 14th, 2026

CVSS Scoring

No CVSS v3 score available

Affected Software

From NVD CPE configuration data

Vendors

Microsoft

Products

Office

Weaknesses (CWE)

CWE-94

References & Reports

Advisories, patches, and third-party reports

No references available.

Source: CISA KEV + NVD · Data may lag official sources by up to one minute