fuse: Race condition by umount (fusermount) operations
Published Mar 2, 2010
3.3
LOWCVSS 2.0
EPSS 0.39%
Description
fusermount in FUSE before 2.7.5, and 2.8.x before 2.8.2, allows local users to unmount an arbitrary FUSE filesystem share via a symlink attack on a mountpoint.
Affected products
No data.
- 1.9
- 2.0
- 2.0
- 2.1
- 2.2
- 2.2.1
- 2.3
- 2.3
- 2.3.0
- 2.4.0
- 2.4.1
- 2.4.2
- 2.5.0
- 2.5.1
- 2.5.2
- 2.5.3
- 2.6.0
- 2.6.1
- 2.6.3
- 2.6.5
- 2.7.0
- 2.7.1
- 2.7.2
- 2.7.3
- 2.7.4
No data.
Red Hat Enterprise Linux 5
fuse
Will not fix
Red Hat Enterprise Linux 6
fuse
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | fuse | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | fuse | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects Red Hat Enterprise Linux 5 because it ships fusermount suid root, however the impact of this flaw is minimized due to the fact that only members in group fuse may use it the executable is owned root:fuse and mode 4750. Red Hat Enterprise Linux 3 and 4 do not provide the fuse package. The Red Hat Product Security has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here: https://access.redhat.com/security/updates/classification/
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00394) | 31.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00398) | 31.30th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00033) | 6.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (23)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=567633 x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/034518.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/034580.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00003.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/38261 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/38287 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/38359 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/38437 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://sourceforge.net/projects/fuse/files/ReleaseNotes/fuse-2.8.3.html/view x_refsource_CONFIRM
- http://sourceforge.net/projects/fuse/files/fuse-2.X/2.7.5/fuse-2.7.5.tar.gz/download x_refsource_CONFIRMPatch
- http://www.debian.org/security/2010/dsa-1989 vendor-advisoryx_refsource_DEBIANPatch
- http://www.securityfocus.com/bid/37983 vdb-entryx_refsource_BIDPatch
- http://www.ubuntu.com/usn/USN-892-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2010/1107 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-0789 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=532940 x_refsource_CONFIRMPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=558833 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=577279 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55945 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2010-0789
- https://www.cve.org/CVERecord?id=CVE-2010-0789
Change history (0)
No recorded changes yet.