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How the CVE Works
CVE-2025-26479 is an out-of-bounds write vulnerability in Dell PowerScale OneFS versions 9.4.0.0 through 9.10.0.0. The flaw occurs in NFS (Network File System) workflows, where improper boundary checks allow an attacker to write data beyond allocated memory buffers. This can corrupt critical system structures, leading to data integrity issues or remote code execution. Attackers exploiting this vulnerability could gain elevated privileges, disrupt services, or manipulate filesystem data. The issue stems from insufficient validation of user-supplied input in NFS request handling.
DailyCVE Form
Platform: Dell PowerScale OneFS
Version: 9.4.0.0 – 9.10.0.0
Vulnerability: Out-of-bounds write
Severity: Critical
Date: 07/15/2025
Prediction: Patch by 09/30/2025
What Undercode Say
nmap -p 2049 <target_IP> showmount -e <target_IP> gdb -q /usr/bin/nfsd
How Exploit
- Craft malicious NFS requests
- Trigger memory corruption
- Overwrite critical pointers
Protection from this CVE
- Apply vendor patches
- Restrict NFS access
- Enable memory protections
Impact
- Remote code execution
- Data corruption
- Privilege escalation
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
