# CVE-2017-0222: Microsoft Internet Explorer Remote Code Execution Vulnerability

Source: https://junglewise.ai/threats/cve-2017-0222-microsoft-internet-explorer-remote-code-execution-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-02-25. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2017-0222 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-02-25

A remote code execution vulnerability exists in Microsoft Internet Explorer when it improperly accesses objects in memory, leading to memory corruption. An attacker could exploit this by tricking a user into visiting a specially crafted website, potentially allowing the execution of arbitrary code in the context of the current user.

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-2017-0222 exploited in the wild?** Yes. CVE-2017-0222 is known to be exploited in the wild, first recorded on 25 February 2022. Treat it as urgent.

**How severe is CVE-2017-0222?** Critical severity, with a CVSS score of 8.8, published 25 February 2022.

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

**Is there a fix for CVE-2017-0222?** A patch was published on 2017-05-12: MSRC advisory and patch released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2017-0222 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2017-0222?** 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 9
- Microsoft Internet Explorer 10
- Microsoft Internet Explorer 11

## Timeline

- 2017-05-12: disclosed: NVD Published Date
- 2017-05-12: patched: MSRC advisory and patch released
- 2022-02-25: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-02-25: exploited: Reported as exploited in the wild per CISA KEV catalog entry

## Related threats

- [Microsoft Edge out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-122518-out-of-bounds-read-in-microsoft-edge-chromium-based-allows-an)
- [Microsoft Edge privilege escalation via incorrect authorization](https://junglewise.ai/threats/cve-2026-69446-incorrect-authorization-in-microsoft-edge-chromium-based-allows)
- [Microsoft Edge use-after-free privilege elevation](https://junglewise.ai/threats/cve-2026-96203-use-after-free-in-microsoft-edge-chromium-based-allows-an)
- [Microsoft Edge heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-96199-heap-based-buffer-overflow-in-microsoft-edge-chromium-based)
- [Microsoft Edge heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-96198-heap-based-buffer-overflow-in-microsoft-edge-chromium-based)