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CVE-2011-1831

17
FAUCET Score

CVE-2011-1831 describes a local privilege escalation vulnerability in ecryptfs-utils, specifically affecting versions before 90. An attacker could exploit a flaw in mountpoint permission checks within utils/mount.ecryptfs_private.c to replace any directory with a new filesystem, thereby gaining elevated privileges. This vulnerability has a CVSS score of 4.6, indicating a low attack complexity and requiring local access, with potential impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 89CPE matchmatch criteria
cpe:2.3:a:ecryptfs:ecryptfs-utils:*:*:*:*:*:*:*:*
62CPE matchmatch criteria
cpe:2.3:a:ecryptfs:ecryptfs-utils:62:*:*:*:*:*:*:*
63CPE matchmatch criteria
cpe:2.3:a:ecryptfs:ecryptfs-utils:63:*:*:*:*:*:*:*
64CPE matchmatch criteria
cpe:2.3:a:ecryptfs:ecryptfs-utils:64:*:*:*:*:*:*:*
65CPE matchmatch criteria
cpe:2.3:a:ecryptfs:ecryptfs-utils:65:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 47th percentile among its peer group of 3,048 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ecryptfs-utils-0:75-5.el5_7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ecryptfs-utils-0:82-6.el6_1.3
View patch

Vendor Advisories (1)

redhatCVE-2011-1831Moderate

ecryptfs: multiple flaws to mount/umount arbitrary locations and possibly disclose confidential information

Aug 9, 2011

References

lists.opensuse.org / opensuse-security-announce/2011-08/msg00009.html
bugzilla.redhat.com / show_bug.cgi
launchpad.net / ecryptfs/+download
ubuntu.com / usn/USN-1188-1