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CVE-2023-53407

18
FAUCET Score

CVE-2023-53407 is a memory leak vulnerability in the Linux kernel's USB gadget pxa27x_udc driver. This flaw occurs because debugfs_lookup() results were not properly deallocated, leading to memory exhaustion over time. It affects Linux kernel versions and has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity and a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.15.100CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.2.5CPE 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
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 22nd percentile among its peer group of 15,940 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2023-53407

kernel: USB: gadget: pxa27x_udc: fix memory leak with using debugfs_lookup()

Sep 18, 2025

References

git.kernel.org / stable/c/67c931a3f2f061bf457995fd21fff114325e0c30
Patch
git.kernel.org / stable/c/7a6952fa0366d4408eb8695af1a0578c39ec718a
Patch
git.kernel.org / stable/c/8da78a60f3323ce7aac589d49fb82f71a04bc835
Patch
git.kernel.org / stable/c/b14d188d0d0b86e2180525aefd570dbb6ebd6aa9
Patch