# CVE-2013-1347: Microsoft Internet Explorer Remote Code Execution Vulnerability

Source: https://junglewise.ai/threats/cve-2013-1347-microsoft-internet-explorer-remote-code-execution-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-03. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2013-1347 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-03-03

A use-after-free vulnerability in Microsoft Internet Explorer 8 occurs when the browser improperly handles objects in memory. Remote attackers can exploit this to execute arbitrary code in the context of the current user by accessing objects that were not properly allocated or have been deleted.

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-2013-1347 exploited in the wild?** Yes. CVE-2013-1347 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.

**How severe is CVE-2013-1347?** Critical severity, with a CVSS score of 8.8, published 3 March 2022.

**Which products and versions are affected?** Microsoft Internet Explorer 8 8.

**Is there a fix for CVE-2013-1347?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2013-1347 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2013-1347?** 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 8 8

## Timeline

- 2013-05: exploited: Exploited in the wild in May 2013.
- 2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

## 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)