CVE-2026-89085
Parted: parted: heap-based buffer overflow via crafted fat32 filesystem image
What happened?
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 software and versions
| Software | Version information | Fixed version |
|---|---|---|
| partedRed Hat | Default status: affected | See vendor advisory |
| partedRed Hat | Default status: unknown | See vendor advisory |
| partedRed Hat | Default status: affected | See vendor advisory |
| partedRed Hat | Default status: affected | See vendor advisory |
| partedRed Hat | Default status: affected | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.