Log in Start free

Vulnerability · Published Oct 16, 2026 · Assigned by redhat

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

Medium 6.6

In plain English

A medium-severity out-of-bounds write in Red Hat Enterprise Linux 10 from Red Hat. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.6Medium
Exploit odds (30 days)0.2%top 89.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12partedno fix listedDEBIAN-CVE-2026-89085
Debian:13partedno fix listedDEBIAN-CVE-2026-89085
Debian:14parted3.8-2DEBIAN-CVE-2026-89085
Ubuntu:22.04:LTSpartedno fix listedUBUNTU-CVE-2026-89085
Ubuntu:24.04:LTSpartedno fix listedUBUNTU-CVE-2026-89085
Ubuntu:26.04:LTSpartedno fix listedUBUNTU-CVE-2026-89085
Ubuntu:26.10partedno fix listedUBUNTU-CVE-2026-89085

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

References