What is CVE-2013-1957?

CVE-2013-1957 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2013-1957 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2013-1957?

CVE-2013-1957 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is AV:L/AC:M/Au:N/C:C/I:N/A:N.

Is there a patch available for CVE-2013-1957?

No patch is currently available for CVE-2013-1957. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2013-1957 actively exploited?

CVE-2013-1957 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/264.html

CVE-2013-1957

Medium

The clone_mnt function in fs/namespace.c in the Linux kernel before 3.8.6 does not properly restrict changes to the MNT_READONLY flag, which allows local users to bypass an intended read-only property of a filesystem by leveraging a separate mount namespace.

Package Linux Kernel

Published 2013-04-24

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

None

Availability

None

Vector string

AV:L/AC:M/Au:N/C:C/I:N/A:N

Weakness type

CWE-264

CVE-2013-1957 is a Permissions, Privileges and Access Control vulnerability

What is Permissions, Privileges and Access Control?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2013-1957 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6
Openwall
http://www.openwall.com/lists/oss-security/2013/04/16/11
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=132c94e31b8bca8ea921f9f96a57d684fa4ae0a9
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/132c94e31b8bca8ea921f9f96a57d684fa4ae0a9
Patch

Details

CVE ID CVE-2013-1957

Severity Medium

CVSS score 4.7 / 10

CVSS version 2.0

Published 2013-04-24

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2013-1957?

CVE-2013-1957 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2013-1957 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2013-1957?

CVE-2013-1957 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:C/I:N/A:N.
Is there a patch available for CVE-2013-1957?

No patch is currently available for CVE-2013-1957. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2013-1957 actively exploited?

No — CVE-2013-1957 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. View CWE-264 on MITRE CWE →