# CVE-2015-2419: Microsoft Internet Explorer Memory Corruption Vulnerability

Source: https://junglewise.ai/threats/cve-2015-2419-microsoft-internet-explorer-memory-corruption-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-28. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2015-2419 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-03-28

A memory corruption vulnerability exists in the JScript 9 engine within Microsoft Internet Explorer 10 and 11. Remote attackers can exploit this by enticing a user to visit a specially crafted website, leading to arbitrary code execution or a denial of service.

Technologies: [Microsoft Edge](https://junglewise.ai/threats/technologies/edge), [Microsoft Internet Explorer](https://junglewise.ai/threats/technologies/internet-explorer). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2015-2419 exploited in the wild?** Yes. CVE-2015-2419 is known to be exploited in the wild, first recorded on 28 March 2022. Treat it as urgent.

**How severe is CVE-2015-2419?** Critical severity, with a CVSS score of 8.8, published 28 March 2022.

**Which products and versions are affected?** Microsoft Internet Explorer 10 JScript 9; Microsoft Internet Explorer 11 JScript 9.

**Is there a fix for CVE-2015-2419?** A patch was published on 2015-07-14: Microsoft released security bulletin MS15-065 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2015-2419 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2015-2419?** Check whether you run Microsoft Edge or Microsoft Internet Explorer. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Microsoft Internet Explorer 10 JScript 9
- Microsoft Internet Explorer 11 JScript 9

## Timeline

- 2015-07-14: disclosed: NVD Published Date
- 2015-07-14: patched: Microsoft released security bulletin MS15-065
- 2022-03-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-03-28: exploited: Reported as exploited in the wild per CISA KEV entry

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