CVE-2026-89088: Parted: parted: denial of service via heap buffer overflow during fat16 resize
A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).
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cwe · low confidence lookup
CWE-787: Exact CWE lookup
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5Timeline events
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3Source links
CVSS vector scores
1 official score
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CWE-787 · source CWE mapping
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.