CVE-2018-4448
CVE-2018-4448 is a medium-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Apple Iphone Os
- Published:
- Last modified:
Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.1.1, watchOS 5.1.2, macOS Mojave 10.14.2, Security Update 2018-003 High Sierra, Security Update 2018-006 Sierra, tvOS 12.1.1. A local user may be able to read kernel memory.
Frequently asked questions
- What is CVE-2018-4448?
- A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.1.1, watchOS 5.1.2, macOS Mojave 10.14.2, Security Update 2018-003 High Sierra, Security Update 2018-006 Sierra, tvOS 12.1.1. A local user may be able to read kernel memory.
- How severe is CVE-2018-4448?
- CVE-2018-4448 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2018-4448 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-4448?
- CVE-2018-4448 primarily affects Apple Iphone Os. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-4448?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-4448 published?
- CVE-2018-4448 was published on 2020-10-27 and last updated on 2026-06-17.
References
- https://support.apple.com/en-us/HT209340
- https://support.apple.com/en-us/HT209341
- https://support.apple.com/en-us/HT209342
- https://support.apple.com/en-us/HT209343
- https://support.apple.com/en-us/HT209600
Affected products (4)
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
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