CVE-2015-2419highunder attackCWE-787

CVE-2015-2419

Published · Updated

83Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 8.8epss 53%
from disclosure to weapon202 days
Published on NVDJul 14
1st PoC+202d
CISA KEV+2449d
exploitation probability
53%top 1% of all CVEs
observed exploitation
yesCISA + VulnCheck
1 public exploit(s)
Action required by CISAfederal deadline: 2022-04-18

Apply updates per vendor instructions.

In short

A vulnerability in Internet Explorer's JScript 9 engine allows attackers to execute malicious code or crash the browser by visiting a specially crafted website. This happens because the browser doesn't properly handle memory, making it susceptible to corruption attacks.

Technical detail

JScript 9 in IE 10 and 11 contains an out-of-bounds write vulnerability (CWE-787) triggered via malicious JavaScript in a web page, leading to arbitrary code execution or denial of service through memory corruption. The attack requires user interaction (visiting a crafted site) but no authentication or special preconditions.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
n/a · n/a
public PoCs found — 1
exploitdbwww.exploit-db.com/exploits/44743unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-065https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-2419http://www.securitytracker.com/id/1032894