CVE-2026-86926
Last modified
CVE-2026-86926 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A heap buffer overflow vulnerability in the FileMaker Server database engine block parsing routine allowed a maliciously crafted .fmp12 database file to cause memory corruption, potentially leading to arbitrary code execution. This vulnerability is addressed in FileMaker Server version 26.0.3.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
A heap buffer overflow vulnerability in the FileMaker Server database engine block parsing routine allowed a maliciously crafted .fmp12 database file to cause memory corruption, potentially leading to arbitrary code execution. This vulnerability is addressed in FileMaker Server version 26.0.3.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Claris | FileMaker Server | < 26.0.3 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-86926?
How severe is CVE-2026-86926?
How do I fix CVE-2026-86926?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-86909A logic issue was addressed with improved state management. …4.4
- CVE-2026-86910A permissions issue was addressed with improved path validat…5.5
- CVE-2026-86911This issue was addressed with improved state management. Thi…5.5
- CVE-2026-86917A permissions issue was addressed with additional restrictio…7.8
- CVE-2026-8692The Vedrixa Forms – User Registration Form, Signup Form & Dr…4.3
- CVE-2026-86924A memory corruption issue was addressed with improved input …5.5
- CVE-2026-86930An out-of-bounds read vulnerability in FileMaker Server for …9.1
- CVE-2026-86934An authorization bypass vulnerability in the FileMaker Serve…9.1
- CVE-2026-86938A DLL hijacking vulnerability in the FileMaker Pro installer…7.3
- CVE-2026-8694Improper access control in Devolutions PowerShell Universal …5.3
- CVE-2026-8695radare2 6.1.5 contains a use-after-free vulnerability in the…9.8
- CVE-2026-8696radare2 6.1.5 contains a use-after-free vulnerability in the…9.8
Are you affected by CVE-2026-86926?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST