CVE-2018-4356
A permissions issue existed. This issue was addressed with improved permission validation. This...
A permissions issue existed. This issue was addressed with improved permission validation. This issue affected versions prior to iOS 12.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A permissions issue existed. This issue was addressed with improved permission validation. This issue affected versions prior to iOS 12.
- Record
CVE-2018-4356- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
A permissions issue existed. This issue was addressed with improved permission validation. This issue affected versions prior to iOS 12.
- Record
CVE-2018-4356- Updated
- 2026-11-02
EUVDEUVD-2018-16142 No score
A permissions issue existed. This issue was addressed with improved permission validation. This issue affected versions prior to iOS 12.
- Record
EUVD-2018-16142- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-27vr-8fpq-79vm
A permissions issue existed. This issue was addressed with improved permission validation. This...
A permissions issue existed. This issue was addressed with improved permission validation. This issue affected versions prior to iOS 12.
- Record
GHSA-27vr-8fpq-79vm- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-4356 is a medium vulnerability (CVSS 5.3) in Cisco Ios, published April 3, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 63rd percentile. No source names a fixed version.