CVE-2018-4241 EXPLOIT
7.8
HIGH · CVSS 3.0 · EPSS 8.1% (pctl 95)
Patch early
A public exploit exists.
Description
An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "Kernel" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.
Scoring
| CVSS | 7.8 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 8.12% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-06-08 |
| Last modified | 2026-06-17 |
Affected (4)
| Vendor | Product |
|---|---|
| apple | apple tv |
| apple | iphone os |
| apple | mac os x |
| apple | watchos |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | XNU Kernel - Heap Overflow Due to Bad Bounds Checking in MPTCP | 2018-06-06 |
References
- http://www.securitytracker.com/id/1041027
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1558
- https://support.apple.com/HT208848
- https://support.apple.com/HT208849
- https://support.apple.com/HT208850
- https://support.apple.com/HT208851
- https://www.exploit-db.com/exploits/44849/
- http://www.securitytracker.com/id/1041027
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1558
- https://support.apple.com/HT208848
- https://support.apple.com/HT208849
- https://support.apple.com/HT208850
- https://support.apple.com/HT208851
- https://www.exploit-db.com/exploits/44849/
→ the Explorer · watch your stack · NVD