CVE-2026-89088

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-10-16 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: High

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).

Weakness Classification (1)

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2462951
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

36 / 100
✓ No authentication
✓ Low complexity

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.22%
Raw Score 0.002160
Percentile 12.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00216
2026-11-12
0.00216
2026-11-10
0.00216
2026-11-09
0.00216
2026-11-08
0.00216
2026-11-07
0.00216
2026-11-06
0.00216
2026-11-05
0.00216

Intelligence Sources

mitre ref →
nvd ref →