Integer Overflow or Wraparound 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-2026-6682 (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 Integer Overflow or Wraparound via the mount_volume process. An attacker can manipulate file-size metadata and trigger unsafe read operations by causing an integer overflow in the calculation of fasize through crafted FAT32 volume data. This can lead to unauthorized access to sensitive information, modification of data, or disruption of system availability. Remote exploitation is possible in over-the-air update or pipeline scenarios.