CVE-2015-1328

Exp

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 update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-1328 is rated High Exploit Risk (80.9/100): CVSS High severity, with high exploitation likelihood (EPSS 89.57%, 100th percentile). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-1328

EDB-ID Source Kind Published Link
40688 exploit_db edb 2016-11-02 Exploit-DB ↗
37293 exploit_db edb 2015-06-16 Exploit-DB ↗
37292 exploit_db edb 2015-06-16 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-1328

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-03 89.68% 89.57% -0.10%
2 2026-04-26 89.53% 89.68% +0.15%
3 2026-04-21 — 89.53% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-1328

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2015-1328

OS Trackers for CVE-2015-1328

vendor priority summary link
debian unimportant CVE-2015-1328 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-1328
redhat — — https://access.redhat.com/security/cve/CVE-2015-1328
ubuntu high CVE-2015-1328 high priority: Ubuntu including 30 source packages (linux, linux-armadaxp, …), 223 status rows across 8 suites (precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety): DNE 147, not-affected 64, ignored 6, released 6. https://ubuntu.com/security/CVE-2015-1328

Affected software / configurations for CVE-2015-1328

Vendor Product Version Raw CPE
canonical ubuntu_linux <= 15.04 cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
linux linux_kernel <= 3.19 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References for CVE-2015-1328

cvelogic Threat Intelligence