Acer Portal app before 3.9.4.2000 for Android does not properly validate SSL certificates, which allows remote attackers to perform a Man-in-the-middle attack via a crafted SSL certificate.
Conclusion & alert: CVE-2016-5648 is rated High Exploit Risk (63.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.33%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-08-07 | 1.38% | 1.33% | -0.04% |
| 2 | 2025-03-30 | 1.72% | 1.38% | -0.34% |
| 3 | 2025-03-29 | — | 1.72% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.0 | MEDIUM |
|
1.6 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| acer | acer_portal | <= 3.9.3.2006 | cpe:2.3:a:acer:acer_portal:*:*:*:*:*:android:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/137775/Acer-Portal-Android-Application-3.9.3.2006-Man-In-The-Middle.html | Exploit Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2016/Jul/17 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/archive/1/538851/100/0/threaded | |
| https://www.kb.cert.org/vuls/id/690343 | Third Party Advisory US Government Resource |