FUSE, possibly 2.8.5 and earlier, allows local users to create mtab entries with…
Priority LOW 38CWE-59Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · Partial
- Fix status
- Partial Red Hat: 1 fixed, 2 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
FUSE, possibly 2.8.5 and earlier, allows local users to create mtab entries with arbitrary pathnames, and consequently unmount any filesystem, via a symlink attack on the parent directory of the mountpoint of a FUSE filesystem, a different vulnerability than CVE-2010-0789.
Why it matters now
EPSS 0.09848 95th percentileScored 2026-11-07
Public exploit Yes 8 exploit referencesTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libfuse_project:libfuse:*:*:*:*:*:*:*:* | up to 2.8.5 | Vulnerable | Libfuse Project |
- cpe:2.3:a:libfuse_project:libfuse:*:*:*:*:*:*:*:* Versions up to 2.8.5 Vulnerable ·Libfuse Project
Remediation
Red Hat 1 advisory
- RHSA-2011:1083 Released 2011-07-20 · Red Hat rating Moderatefuse security update
- Red Hat Enterprise Linux Server (v. 6) fuse-2.8.3-3.el6_1, fuse-devel-2.8.3-3.el6_1, fuse-devel-2.8.3-3.el6_1.ppc +2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:1083 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-3879
- 2026-10-03 Alias added: GHSA-9qwx-j72c-6hr4
References
Exploit 8
- http://www.halfdog.net/Security/FuseTimerace/
- 20101102 fusermount: Unmount any filesystem
- [oss-security] 20101104 CVE request: fuse
- https://bugzilla.novell.com/show_bug.cgi?id=651598
- https://bugzilla.redhat.com/show_bug.cgi?id=651183
- https://bugs.launchpad.net/bugs/670622
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=602333
- [oss-security] 20101105 Re: CVE request: fuse
More Libfuse Project Libfuse vulnerabilities
- TI-2026-25580 Use After Free in libfuse CVSS 3.1HIGH 7.8
- TI-2026-25608 libfuse: NULL Pointer Dereference and Memory Leak in io_uring Queue Initialization CVSS 3.1MEDIUM 5.5
Sources
- CVE-2010-3879 · CVE Program
- CVE-2010-3879 · NVD
- FIRST EPSS
- GHSA-9qwx-j72c-6hr4 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-3879 · Red Hat security data · CC BY 4.0
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