CVE-2015-2419

Status: AnalyzedHigh (8.8)⚠ Active exploitation💥 Exploit

JScript 9 in Microsoft Internet Explorer 10 and 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "JScript9 Memory Corruption Vulnerability."

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base score: 8.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 53%
Percentile among all scored CVEs: 99
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).

CISA KEV — actively exploited

Added to catalog: 3/28/2022
Remediation due date: 4/18/2022
Known ransomware use: Unknown

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Microsoft Internet Explorer 11 - javascript Code Execution (2/1/2016)

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1203 Exploitation for Client Executionexecution95 %
Primary impactT1059 Command and Scripting Interpreterexecution90 %
Secondary impactT1499.004 Application or System Exploitationimpact75 %

Navegador remoto (AV:N) con interacción del usuario (UI:R) explotando corrupción de memoria en JScript9 para ejecución arbitraria de código o DoS. CWE-787 (buffer overflow) típico de T1203.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Restrict Web-Based Content Privileged Account Management Limit Software Installation Filter Network Traffic Execution Prevention Behavior Prevention on Endpoint

Affected technologies (1)

Microsoft — Internet Explorer

CWEs

CWE-787
CWE-787

References

Raw JSON (NVD)

Show

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