CRITICAL
In iOS before 11.2.5, macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan, watchOS before 4.2.2, and tvOS before 11.2.5, a memory corruption issue exists and was addressed with improved memory handling
Published Jan 11, 2019
9.8
CRITICALCVSS 3.0
EPSS 1.66%
Description
In iOS before 11.2.5, macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan, watchOS before 4.2.2, and tvOS before 11.2.5, a memory corruption issue exists and was addressed with improved memory handling.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.66% 0.01658
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01658
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.66% (0.01658) | 75.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.66% (0.01658) | 73.49th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.76% (0.00757) | 70.97th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.15% (0.02152) | 73.74th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.56% (0.00562) | 77.91th | v3 (v2023.03.01) |
| Apr 2, 2024 | 0.56% (0.00562) | 77.27th | v3 (v2023.03.01) |
| Jan 5, 2024 | 0.56% (0.00562) | 75.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00464) | 71.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.13% (0.00125) | 0.44th | v1 |
| Apr 14, 2021 | 0.13% (0.00125) | 0.00th | v1 |
Weaknesses (1)
References (4)
- https://support.apple.com/HT208462 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT208463 x_refsource_MISCVendor Advisory
- https://support.apple.com/HT208464 x_refsource_MISCVendor Advisory
- https://support.apple.com/HT208465 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://support.apple.com/HT208462 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/HT208463 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/HT208464 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/HT208465 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published Jan 11, 2019
Updated Aug 5, 2024
Reserved Jan 2, 2018
Link CVE-2018-4189
CISA Vulnrichment
Updated n/a