CVE-2026-50502: Insufficient granularity of access control in Windows Event Logging Service allows an authorized attacker to execute code over a network.

highCVSS 8CVE-2026-50502

Insufficient granularity of access control in Windows Event Logging Service allows an authorized attacker to execute code over a network.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8
Published: 2026-07-14
Last updated: 2026-07-16
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-50502

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-505020.60% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-50502	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

critical[NEW] [critical] Microsoft Windows products: Multiple vulnerabilitiescert-bund
unknownexploitedNCSC-2026-0231 [1.00] [M/H] Vulnerabilities fixed in Microsoft Windowsncsc-nl
highCVE-2026-50502: Windows Event Logging Service Remote Code Execution Vulnerabilitymsrc

Recent advisories for Insufficient granularity of

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-50405: Insufficient granularity of access control in Windows Filtering Platform (WFP) allows an autho…nvd · 2026-07-14
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criticalexploitedCVE-2026-56155: Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vuln…cisa-kev · 2026-07-14