What’s Vulnerable › Vulnerabilities

CVE-2026-89085: Parted: parted: heap-based buffer overflow via crafted fat32 filesystem image

• Severity: medium (CVSS 6.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-16 · updated 2026-10-19
• Weakness: CWE-787

Description

A flaw was found in parted. A heap-based buffer overflow can occur when processing a specially crafted FAT32 filesystem due to an integer calculation error during buffer allocation. A local attacker could exploit this by enticing a user or automated service to open a malicious filesystem image, resulting in an application crash leading to a Denial of Service (DoS) or potential memory corruption.

Affected products

• Red Hat Enterprise Linux 10: all versions
• Red Hat Enterprise Linux 7: all versions
• Red Hat Enterprise Linux 8: all versions
• Red Hat Enterprise Linux 9: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-89085
• https://bugzilla.redhat.com/show_bug.cgi?id=2466034
• https://bugzilla.redhat.com/show_bug.cgi?id=2466034

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