What is CVE-2016-1576?

CVE-2016-1576 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2016-1576 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2016-1576?

CVE-2016-1576 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2016-1576?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2016-1576 patch availability.

Is CVE-2016-1576 actively exploited?

CVE-2016-1576 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2016-1576

High

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.

Package Linux Kernel

Published 2016-05-02

Last modified 2026-05-06

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

8 total

Halfdog
http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/

Exploit Third Party Advisory
Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360

Mailing List Patch Vendor Advisory
Launchpadlibrarian
https://launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch

Mailing List Patch Third Party Advisory
Launchpadlibrarian
https://launchpadlibrarian.net/235300225/0006-overlayfs-Propogate-nosuid-from-lower-and-upper-moun.patch

Mailing List Patch Third Party Advisory
People
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1576.html

Third Party Advisory

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2016-1576

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2016-05-02

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2016-1576?

CVE-2016-1576 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2016-1576 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2016-1576?

CVE-2016-1576 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2016-1576?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2016-1576 patch availability.
Is CVE-2016-1576 actively exploited?

No. CVE-2016-1576 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.