01 Record

CVE-2016-2853

The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem,

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.91% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 57.2% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2016-05-02 10:00Z10 YR AGO

Last updated

2024-08-05 23:32Z2 YR AGO

Reserved

2016-03-06

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-269Improper Privilege ManagementClass
CWE-284Improper Access ControlPillar

Data version

5.1

Document digest

9919d6f5c7fe9e7b7b1917569c1e9e869f16351d39552bd1c0635a9e912d7d8f

05 Affected products

VendorProductVersionsPlatforms

linuxlinux_kernelNot specified—

redhatenterprise_linuxNot specified—

redhatenterprise_mrgNot specified—

06 References

www.securityfocus.com96839http://www.securityfocus.com/bid/96839vdb-entryx_refsource_BID
www.halfdog.nethttp://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/x_refsource_MISC
www.openwall.com[oss-security] 20160224 Aufs Union Filesystem Privilege Escalation In User Namespaceshttp://www.openwall.com/lists/oss-security/2016/02/24/9mailing-listx_refsource_MLIST
sourceforge.net[aufs] 20160219 aufs3 and aufs4 GIT releasehttps://sourceforge.net/p/aufs/mailman/message/34864744/mailing-listx_refsource_MLIST
www.openwall.com[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_uphttp://www.openwall.com/lists/oss-security/2021/10/18/1mailing-listx_refsource_MLIST

01 Record index

CVE-2016-2853

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2016-2853

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References