Vulnerability · CVE-2018-4344
Apple Multiple Products Memory Corruption Vulnerability
Published Apr 3, 2019 · catalog updated Jun 16, 2026 · Apple Multiple Products
Patch now
CVE-2018-4344 is in the CISA known-exploited catalog, due Jul 18, 2022. Confirm Apple Multiple Products against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- Severity
- High7.8
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 2.37%
- Remediation
- Remediation guidance
- Affected products
- cpe apple/iphone os · cpe apple/mac os x · cpe apple/tvos · cpe apple/watchos · vendor Apple Multiple Products
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apple/iphone osversion unspecified
- cpe apple/mac os xversion unspecified
- cpe apple/tvosversion unspecified
- cpe apple/watchosversion unspecified
- vendor Apple Multiple Productsversion unspecified
How to fix CVE-2018-4344
Recommended remediation
Apply updates per vendor instructions. CISA due date Jul 18, 2022.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2018-4344 is in the CISA known-exploited catalog, due Jul 18, 2022. Confirm Apple Multiple Products against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Affected version ranges are not on this record. Apply updates per vendor instructions.
What should an analyst verify?
CWE-119: Buffer Overflow. EPSS 2.37%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 3, 2019 · Catalog
Detected
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
Jun 27, 2022 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Jul 18, 2022 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
Sources
- CISA KEVConfirmed exploitationCVE-2018-4344
Apple iOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability which can allow for code execution.
cisa.gov - CVE.orgVulnerability recordCVE-2018-4344
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2018-4344
30-day exploitation probability 2.4%
first.org - NIST NVDVulnerability recordCVE-2018-4344
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-2018-4344
Apple iOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability which can allow for code execution.
vulncheck.com
References
Freshness
Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.