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CVE-2023-53019

21
FAUCET Score

CVE-2023-53019 is a Linux kernel vulnerability affecting the mdiobus_get_phy() function, where an invalid 'addr' parameter can lead to an out-of-bounds array access. This vulnerability carries a CVSS score of 7.8 (High), indicating that a local attacker with low privileges could achieve high confidentiality, integrity, and availability impacts with low attack complexity. Currently, 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
>= 4.5, < 4.14.305CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.272CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.231CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.166CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.91CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 32nd percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-427.13.1.el9_4
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-53019Moderate

kernel: net: mdio: validate parameter addr in mdiobus_get_phy()

Mar 27, 2025

References

git.kernel.org / stable/c/1d80c259dfbadefa61b7ea334dfce5cb57f8c72f
Patch
git.kernel.org / stable/c/4bc5f1f6bc94e695dfd912122af96e7115a0ddb8
Patch
git.kernel.org / stable/c/7879626296e6ffd838ae0f2af1ab49ee46354973
Patch
git.kernel.org / stable/c/867dbe784c5010a466f00a7d1467c1c5ea569c75
Patch
git.kernel.org / stable/c/8a7b9560a3a8eb8724888c426e05926752f73aa0
Patch
git.kernel.org / stable/c/ad67de330d83e8078372b52af18ffe8d39e26c85
Patch
git.kernel.org / stable/c/c431a3d642593bbdb99e8a9e3eed608b730db6f8
Patch