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

- Exploited (CISA KEV): yes, added 2022-03-03
- Published: 2013-05-05
- CVSS: 8.8 HIGH (v3.1)
- EPSS: 77.7% (100th percentile)
- CWE: CWE-94

Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly allocated or (2) is deleted, as exploited in the wild in May 2013.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | Before feed history | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Before feed history | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | Before feed history | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2013-1347 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2013-1347