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CVE-2015-3202

22
FAUCET Score

CVE-2015-3202 describes a local privilege escalation vulnerability in fusermount, a component of FUSE, affecting versions prior to 2.9.3-15. This flaw allows local users to write to arbitrary files by manipulating the LIBMOUNT_MTAB environment variable during mount or umount operations. With a CVSS score of 3.6, this vulnerability has a low attack complexity and requires local access, impacting integrity and availability. While not listed on the KEV catalog or Hot List, an exploit for local privilege escalation is available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
<= 2.9.2CPE matchmatch criteria
cpe:2.3:a:fuse_project:fuse:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.6LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-23
Model: v2026.06.15
ExploitDB: EDB-37089 · May 23, 2015
This CVE's current EPSS score of 0.0101 is in the 91st percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 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

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: fuse
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: fuse
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: fuse

Vendor Advisories (1)

redhatCVE-2015-3202Important

fuse: incorrect filtering of environment variables leading to privilege escalation

May 21, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-June/159298.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/159543.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/159683.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/159831.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/160094.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/160106.html
lists.opensuse.org / opensuse-updates/2015-06/msg00005.html
lists.opensuse.org / opensuse-updates/2015-06/msg00007.html
packetstormsecurity.com / files/132021/Fuse-Local-Privilege-Escalation.html
gist.github.com / taviso/ecb70eb12d461dd85cba
Exploit
security.gentoo.org / glsa/201603-04
security.gentoo.org / glsa/201701-19
twitter.com / taviso/status/601370527437967360
exploit-db.com / exploits/37089
debian.org / security/2015/dsa-3266
debian.org / security/2015/dsa-3268
openwall.com / lists/oss-security/2015/05/21/9
Exploit
securityfocus.com / bid/74765
securitytracker.com / id/1032386
ubuntu.com / usn/USN-2617-1
ubuntu.com / usn/USN-2617-2
ubuntu.com / usn/USN-2617-3