Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2011-0542

16
FAUCET Score

CVE-2011-0542 describes a vulnerability in fusermount, part of fuse 2.8.5 and earlier, where it fails to change directory to / before mount or unmount operations. This allows local attackers to unmount arbitrary directories. With a CVSS score of 3.3, this is a low-severity vulnerability, requiring local access and moderate attack complexity to achieve partial integrity and availability impacts. There is no known exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.5CPE matchmatch criteria
cpe:2.3:a:fuse:fuse:*:*:*:*:*:*:*:*
1.9CPE matchmatch criteria
cpe:2.3:a:fuse:fuse:1.9:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:fuse:fuse:2.0:pre0:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:fuse:fuse:2.0:pre1:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:a:fuse:fuse:2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 34th percentile among its peer group of 747 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 (4)

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-2011-0542Low

fuse: unprivileged user can unmount arbitrary locations via symlink attack

Nov 2, 2010

References

fuse.git.sourceforge.net / git/gitweb.cgi
openwall.com / lists/oss-security/2011/02/02/2
Patch
openwall.com / lists/oss-security/2011/02/03/5
Patch
openwall.com / lists/oss-security/2011/02/08/4
Patch