fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.
CVE-2014-5207
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 55.5%
- KEV
- Not listed
Published
August 18, 2014
Last Modified
May 6, 2026
References (24)
- cve@mitrehttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9566d6742852c527bf5af38af5cbb878dad75705
- cve@mitrehttp://osvdb.org/show/osvdb/110055
- cve@mitrehttp://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html
- cve@mitrehttp://seclists.org/oss-sec/2014/q3/352
- cve@mitrehttp://www.exploit-db.com/exploits/34923
- cve@mitrehttp://www.openwall.com/lists/oss-security/2014/08/13/4
- cve@mitrehttp://www.securityfocus.com/bid/69216
- cve@mitrehttp://www.ubuntu.com/usn/USN-2317-1
- cve@mitrehttp://www.ubuntu.com/usn/USN-2318-1
- cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=1129662
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/95266
- cve@mitrehttps://github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705
- af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9566d6742852c527bf5af38af5cbb878dad75705
- af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/show/osvdb/110055
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-extra-3.13.0-34-generic (3.13.0-34.60) @ trusty | 2026-05-28 | ubuntu |
| ubuntu | linux-image-3.13.0-34-generic (3.13.0-34.60~precise1) @ precise | 2026-05-28 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 11× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 21:55 UTCEG score recompute
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- 2026-07-04 22:26 UTCOSV refresh
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- 2026-05-28 17:35 UTCEG score recompute
- 2026-05-28 17:35 UTCVendor advisory
- 2026-05-28 17:35 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-34923First seen Oct 9, 2014
Linux Kernel < 3.16.1 - 'Remount FUSE' Local Privilege Escalation
Open source ↗
Related CVEs(same vendor + same CWE)
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Frequently asked(4)
What is CVE-2014-5207?
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Is CVE-2014-5207 actively exploited?
How do I remediate CVE-2014-5207?
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