Vulnerability Monitor

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CVE-2025-53759


Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 4 products from microsoft, from microsoft, from microsoft and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2025-08-12T18:15:44.777

Last Modified

2025-08-15T17:16:38.060

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-908

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application microsoft 365_apps - Yes
Application microsoft 365_apps - Yes
Application microsoft office 2019 Yes
Application microsoft office 2019 Yes
Application microsoft office_long_term_servicing_channel 2021 Yes
Application microsoft office_long_term_servicing_channel 2021 Yes
Application microsoft office_long_term_servicing_channel 2021 Yes
Application microsoft office_long_term_servicing_channel 2024 Yes
Application microsoft office_long_term_servicing_channel 2024 Yes
Application microsoft office_long_term_servicing_channel 2024 Yes
Application microsoft office_online_server - Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.