# CVE-2021-25337: Samsung Mobile Devices Improper Access Control Vulnerability

- Exploited (CISA KEV): yes, added 2022-11-08
- Published: 2021-03-04
- CVSS: 4.4 MEDIUM (v3.1)
- EPSS: 2.8% (87th percentile)
- CWE: CWE-269

Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to read or write certain local files.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| 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-2021-25337 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2021-25337