Microsoft · btrfs: fix EEXIST abort due to non-consecutive gaps in chunk allocation
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in b14c5e04bd0f722ed631845599d52d03fcae1bc1 : update Microsoft when convenient.
Data as of 30 Oct 2026, 11:52 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in b14c5e04bd0f722ed631845599d52d03fcae1bc1, 09207c3975e1f8f76a52472004dfcab997b4cbd6, 156cac365e27a82b64ae510c5f463fd81f0265b1 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 27 May 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 30 Oct 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 btrfs filesystem where an EEXIST abort occurs due to non-consecutive gaps in chunk allocation. It affects version 3.0 of the Microsoft product. No CVSS score or detailed technical impact information is provided. There is no indication of known exploits in the wild or a vendor patch advisory at this time.