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CVE-2010-3879

34
FAUCET Score

CVE-2010-3879 describes a local privilege escalation vulnerability in FUSE, specifically versions 2.8.5 and earlier, where an attacker can manipulate mtab entries through a symlink attack on a FUSE filesystem's mountpoint. This allows an unprivileged local user to unmount arbitrary filesystems. The vulnerability has a CVSS score of 5.8, indicating medium severity with low impact on integrity and availability, and requires medium attack complexity. While there is an ExploitDB entry for a race condition related to FUSE's fusermount tool, there is no evidence of active exploitation, Metasploit or Nuclei modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.5CPE matchmatch criteria
cpe:2.3:a:libfuse_project:libfuse:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:P

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
9.85%
Probability of exploitation in next 30 days
EPSS Percentile
95.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-34953 · Nov 2, 2010
This CVE's current EPSS score of 0.0985 is in the 95th percentile among its peer group of 19,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: fuse-0:2.8.3-3.el6_1
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: util-linux-ng
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: fuse
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: util-linux

Vendor Advisories (1)

redhatCVE-2010-3879Low

fuse: unprivileged user can unmount arbitrary locations via symlink attack

Nov 2, 2010

References

bugs.debian.org / cgi-bin/bugreport.cgi
ExploitPatchThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2011-February/053792.html
Third Party Advisory
lists.grok.org.uk / pipermail/full-disclosure/2010-November/077247.html
ExploitThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2011-04/msg00000.html
Third Party Advisory
openwall.com / lists/oss-security/2010/11/04/8
ExploitMailing ListThird Party Advisory
openwall.com / lists/oss-security/2010/11/05/2
ExploitMailing ListThird Party Advisory
osvdb.org / 70520
Broken Link
bugs.launchpad.net / bugs/670622
ExploitThird Party Advisory
bugzilla.novell.com / show_bug.cgi
ExploitIssue Tracking
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingPatch
secunia.com / advisories/42961
Third Party Advisory
secunia.com / advisories/42965
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/62986
Third Party AdvisoryVDB Entry
halfdog.net / Security/FuseTimerace
ExploitPatchThird Party Advisory
mandriva.com / security/advisories
Third Party Advisory
securityfocus.com / bid/44623
ExploitThird Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1045-1
Third Party Advisory
ubuntu.com / usn/USN-1045-2
Third Party Advisory
vupen.com / english/advisories/2011/0181
Permissions Required
vupen.com / english/advisories/2011/0302
Permissions Required