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CVE-2021-47660

17
FAUCET Score

CVE-2021-47660 is a memory leak vulnerability affecting the Linux kernel's NTFS3 filesystem driver. This flaw, rated Medium (CVSS 5.5), could allow a local attacker to cause a denial of service by exhausting system memory. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.15, < 5.15.46CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18, < 5.18.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 66th percentile among its peer group of 15,940 CVEs.

Social Chatter

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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2021-47660Moderate

kernel: fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()'

Feb 26, 2025

References

git.kernel.org / stable/c/2c97519ed6b4239594c58ddacf3d0d576cf070cc
Patch
git.kernel.org / stable/c/bc4a1d384a04c6dba9312e1421a9f9f7c03339a4
Patch
git.kernel.org / stable/c/d8be98ab88250dc12a98efdb703792a537b0eac3
Patch
git.kernel.org / stable/c/e589f9b7078e1c0191613cd736f598e81d2390de
Patch