EXT4_IOC_MOVE_EXT · ext4: validate donor file superblock early
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in fb52013cad9e9b7d3a6a14ea1bcd841e41da7c6c : update Microsoft when convenient.
Data as of 7 Nov 2026, 12:32 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in fb52013cad9e9b7d3a6a14ea1bcd841e41da7c6c, c143957520c6c9b5cd72e0de8b52b814f0c576fe, 74796e886ca39fcb0d3fd36ea6a39c62784ab6fb +3
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Description
This vulnerability involves the ext4 filesystem where the donor file superblock is not validated early enough in the EXT4_IOC_MOVE_EXT ioctl operation. The issue could potentially lead to improper handling of filesystem metadata during extent moves. The affected version is ext4 version 3.0. No CVSS score or detailed impact information is provided.