An issue was discovered in certain Apple products. iOS before 11.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "IOSurface" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.
Conclusion & alert: CVE-2017-13861 is rated High Exploit Risk (74.9/100): CVSS High severity, with high exploitation likelihood (EPSS 14.89%, 96th percentile). 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 |
|---|---|---|---|---|
| 43320 | exploit_db | edb | 2017-12-11 | 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 | 2026-06-15 | 80.54% | 14.89% | -65.65% |
| 2 | 2026-05-27 | 68.49% | 80.54% | +12.05% |
| 3 | 2025-12-04 | — | 68.49% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/153148/Safari-Webkit-Proxy-Object-Type-Confusion.html | |
| http://www.securityfocus.com/bid/102134 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1039952 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1039953 | Third Party Advisory VDB Entry |
| https://support.apple.com/HT208325 | Vendor Advisory |
| https://support.apple.com/HT208327 | Vendor Advisory |
| https://support.apple.com/HT208334 | Vendor Advisory |
| https://www.exploit-db.com/exploits/43320/ | Third Party Advisory VDB Entry |