What is CVE-2015-1328?

CVE-2015-1328 is a high-severity vulnerability in Linux Kernel, classified under CWE-264. CVSS score: 7.8/10. Published 2016-11-28.

How severe is CVE-2015-1328?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2015-1328 known to be exploited?

92 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux Kernel

CVE-2015-1328

The overlayfs implementation in the linux (aka Linux kernel) package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check permissions for file creation in the upper filesystem directory, which allows local users to obtain root access by leveraging a configuration in which overlayfs is permitted in an arbitrary mount namespace.

Published 2016-11-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.377 (98.5th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.377 · newest: 0.377 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-264

Public proof-of-concept exploits

References

people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-1328.html (Vendor Advisory)
www.securityfocus.com/bid/75206 (VDB Entry, Third Party Advisory, vdb-entry)
www.exploit-db.com/exploits/37292/ (exploit)
www.exploit-db.com/exploits/40688/ (Exploit, VDB Entry, exploit)
security-tracker.debian.org/tracker/CVE-2015-1328 (Third Party Advisory)
seclists.org/oss-sec/2015/q2/717 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2015-1328?: CVE-2015-1328 is a high-severity vulnerability in Linux Kernel, classified under CWE-264. CVSS score: 7.8/10. Published 2016-11-28.
How severe is CVE-2015-1328?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2015-1328 known to be exploited?: 92 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.