Use of Uninitialized Resource Affecting abbrev/fatfs package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published1 Jul 2026
- disclosed1 Jul 2026
- creditUnknown
Introduced: 1 Jul 2026
CVE-2026-6686 (opens in a new tab)How to fix?
There is no fixed version for abbrev/fatfs.
Overview
Affected versions of this package are vulnerable to Use of Uninitialized Resource via the f_lseek function. An attacker can access sensitive information by seeking past the end of a file, causing the allocation of clusters that are not properly initialized and may contain residual data.