Code Execution Vulnerability in Microsoft Excel and Other Office Products
CVE-2007-0671

8.8HIGH

Key Information:

Vendor: Microsoft
Status: Frontpage; Project; Access; Outlook
Vendor: CVE Published:; 3 February 2007

Badges

📈 Score: 554👾 Exploit Exists🟣 EPSS 66%🦅 CISA Reported

What is CVE-2007-0671?

CVE-2007-0671 is a vulnerability found in Microsoft Excel and possibly other Microsoft Office products, specifically affecting versions from Excel 2000 to 2004 for Mac. This critical vulnerability allows remote, user-assisted attackers to execute arbitrary code on the affected systems. Due to the nature of the software, which is widely utilized for handling spreadsheets and data analysis, this vulnerability poses a significant risk to organizations. An attacker exploiting this vulnerability could leverage it through unknown attack vectors, potentially leading to unauthorized access to sensitive data, manipulation of files, or the deployment of malicious software, resulting in substantial operational and reputational damage to the impacted organization.

Potential Impact of CVE-2007-0671

Remote Code Execution: The most immediate and concerning impact is the ability for attackers to execute arbitrary code on compromised machines. This can lead to complete system control, allowing for unauthorized data access, alteration, or deletion, significantly jeopardizing organizational integrity.
Data Breach Risks: Exploitation of this vulnerability can facilitate data breaches, where sensitive organizational data could be exfiltrated or manipulated. The loss of confidential information can have serious legal, financial, and operational repercussions.
Operational Disruption: Should an attacker gain control through this vulnerability, organizations could face significant operational disruptions. Compromised systems may require extensive downtime for recovery, incident response, and patch application, potentially causing a ripple effect across business operations.

CISA has reported CVE-2007-0671

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2007-0671 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.