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CVE-2023-53281

20
FAUCET Score

CVE-2023-53281 is a medium-severity vulnerability in the Linux kernel's rtl8723bs Wi-Fi driver, affecting Linux kernel versions. It stems from an incorrect locking mechanism in the _rtw_join_timeout_handler() function, leading to a kernel oops (system crash). The vulnerability has a CVSS score of 5.5 (MEDIUM), indicating a local attack vector with low complexity, requiring local privileges, and resulting in high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.15.47, < 5.15.111CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.17.15, < 5.18CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18.4, < 5.19CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.15.47, < 5.15.111CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.17.15, < 5.18CPE 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
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 9th 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-2023-53281

kernel: drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()

Sep 16, 2025

References

git.kernel.org / stable/c/209850f17717a3b5cc558578bef5631ac7045539
Patch
git.kernel.org / stable/c/215792eda008f6a1e7ed9d77fa20d582d22bb114
Patch
git.kernel.org / stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7
Patch
git.kernel.org / stable/c/4ab1bace1dd3875371b481ef4301c4671bddea22
Patch
git.kernel.org / stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554
Patch