CVE-2026-83830
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk35th percentile - higher than 35% of all known CVEs
Summary
Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.
Risk Assessment
An authorized user could exploit the buffer overflow to gain elevated privileges, potentially leading to system compromise.
Recommendation
Apply the latest Windows security updates to fix the COM+ service buffer overflow.
Other vulnerabilities in Windows COM+ Event System Service
See all- CVE-2022-41033HighActively exploited
A vulnerability in the Windows COM+ Event System Service allows for elevation of privilege. Technical details are not provided in the description.
- CVE-2026-83785High
Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS