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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History

Fri, 16 Oct 2026 23:15:00 +0000

Type Values Removed Values Added
Description 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).
Title Parted: parted: denial of service via heap buffer overflow during fat16 resize
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-787
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-16T23:06:18.907Z

Reserved: 2026-09-10T20:05:11.746Z

Link: CVE-2026-89088

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-16T23:17:02.680

Modified: 2026-10-16T23:17:02.680

Link: CVE-2026-89088

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T00:30:13Z

Weaknesses