Exploited vulnerability · CISA KEV
Is CVE-2018-4344 exploited? Yes: in CISA KEV since 27 Jun 2022
Gociux · Apple Multiple Products · data: CISA KEV, CVE record, FIRST EPSS
Yes. CVE-2018-4344, Apple Multiple Products Memory Corruption Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 27 Jun 2022, 1181 days after it was published. It affects Apple Multiple Products. If you run it, CISA's required action is: Apply updates per vendor instructions.
exploitedYesCISA KEV · 27 Jun 2022
ransomwareNot knownno confirmed use
EPSSbelow top 10%lower predicted activity right now (it is still confirmed exploited)
severity7.8CVSS 3.1 · high
US federal due18 Jul 2022BOD 22-01 deadline
What it is
Apple iOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability which can allow for code execution.
| Vendor | Apple (96 exploited CVEs in KEV) |
| Product | Multiple Products |
| Vulnerability | Apple Multiple Products Memory Corruption Vulnerability |
| Weakness | CWE-119 |
| Published | 3 Apr 2019 |
| Added to KEV | 27 Jun 2022 |
| Reported by (CNA) | apple |
What to do
- Check whether you run it. Look for Multiple Products in your asset inventory, including appliances and cloud images. Stack check lists every exploited Apple CVE at once.
- Apply the fix. Apply updates per vendor instructions.
- If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 3 Apr 2019.
- Get told next time. Email alerts when CISA adds a CVE for Apple.
Other exploited CVEs in Multiple Products
- CVE-2024-27834: Apple Multiple Products Improper Authentication Vulnerability (4 Nov 2026)
- CVE-2026-86950: Apple Multiple Products Out-of-Bounds Write Vulnerability (29 Sep 2026)
- CVE-2025-43510: Apple Multiple Products Improper Locking Vulnerability (20 Mar 2026)
- CVE-2025-43520: Apple Multiple Products Classic Buffer Overflow Vulnerability (20 Mar 2026)
- CVE-2025-31277: Apple Multiple Products Buffer Overflow Vulnerability (20 Mar 2026)
- CVE-2023-43000: Apple Multiple products Use-After-Free Vulnerability (5 Mar 2026)
References
Questions
Is CVE-2018-4344 being exploited?
Yes. CISA added CVE-2018-4344 to the Known Exploited Vulnerabilities catalog on 27 Jun 2022, which means there is reliable evidence of exploitation in the wild.
Is CVE-2018-4344 used in ransomware attacks?
CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.
How do I fix CVE-2018-4344?
Apply updates per vendor instructions. Check Apple's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Products and watch it for signs of compromise.
Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in June 2022 · Apple scorecard · act-now radar.
Running Apple in a regulated environment?
We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.
Get in touch →GOCIUX<<CVE<CVE<2018<4344<<<<<<<<<<<<<<EU<<SIBIU<RO<<<<<<<<<<<<