CVE-2017-8522

Status: ModifiedHigh (7.5)—
Microsoft browsers in Microsoft Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an allow an attacker to execute arbitrary code in the context of the current user when the JavaScript engines fail to render when handling objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8517 and CVE-2017-8524.
CVSS

Version: 3.0
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Base score: 7.5
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 8.21%
Percentile among all scored CVEs: 95
Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)

Microsoft — Edge Microsoft — Internet Explorer
CWEs

CWE-119
References

Raw JSON (NVD)

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