CVE-2026-91041 (GCVE-0-2026-91041)
Vulnerability from cvelistv5 – Published: 2026-10-20 13:10 – Updated: 2026-10-20 15:30
VLAI
EPSS
VEX
Title
FileX fault-tolerant log replay writes past the destination sector when mounting a crafted FAT image
Summary
Mounting an attacker-controlled FAT image with fault tolerance enabled causes an out-of-bounds heap write during log replay. The write is attacker-positioned and attacker-valued, and on a common embedded memory layout it reaches the FX_MEDIA driver callback, giving control of the instruction pointer.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 15:29 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX - FileX |
Affected:
0 , ≤ 6.5.1.202602
(custom)
Unaffected: 6.5.2.202603 |
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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