# CVE-2012-1889: Microsoft XML Core Services Memory Corruption Vulnerability

- Exploited (CISA KEV): yes, added 2022-06-08
- Published: 2012-06-13
- CVSS: 8.8 HIGH (v3.1)
- EPSS: 83.5% (100th percentile)
- CWE: CWE-119

Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

## 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-2012-1889 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2012-1889