# CVE-2010-1871: Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability

- Exploited (CISA KEV): yes, added 2021-12-10
- Published: 2010-08-04
- CVSS: 8.8 HIGH (v3.1)
- EPSS: 83.4% (100th percentile)
- CWE: CWE-20

JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for Red Hat Linux, does not properly sanitize inputs for JBoss Expression Language (EL) expressions, which allows remote attackers to execute arbitrary code via a crafted URL.  NOTE: this is only a vulnerability when the Java Security Manager is not properly configured.

## 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.

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