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CVE-2013-1957

14
FAUCET Score

CVE-2013-1957 describes a vulnerability in the Linux kernel (before version 3.8.6) where the clone_mnt function in fs/namespace.c improperly handles the MNT_READONLY flag. This flaw allows local users to bypass the intended read-only property of a filesystem by utilizing a separate mount namespace. With a CVSS score of 4.7 (AV:L/AC:M/Au:N/C:C/I:N/A:N), this vulnerability requires local access and moderate attack complexity to achieve a complete confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.8.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.8.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:*
3.8.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:*
3.8.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:*
3.8.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.8.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 29th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2013-1957

CVE-2013-1957

References

git.kernel.org
github.com / torvalds/linux/commit/132c94e31b8bca8ea921f9f96a57d684fa4ae0a9
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.8.6
openwall.com / lists/oss-security/2013/04/16/11