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CVE-2022-48854

19
FAUCET Score

CVE-2022-48854 describes a use-after-free vulnerability in the Linux kernel's arc_emac network driver, specifically within the arc_mdio_probe() function. This flaw affects Linux kernel versions and arises when the bus->name is accessed after the 'bus' object has been freed, leading to system instability. With a CVSS score of 7.8 (High), this vulnerability can be exploited locally with low attack complexity, potentially leading to high confidentiality, integrity, and availability impacts. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.16, < 5.16.15CPE 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
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 37th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Advisories (1)

redhatCVE-2022-48854Moderate

kernel: net: arc_emac: Fix use after free in arc_mdio_probe()

Jul 16, 2024

References

git.kernel.org / stable/c/84c831803785c2c3bec5c28c0e8a0b72f6b41d4d
Patch
git.kernel.org / stable/c/bc0e610a6eb0d46e4123fafdbe5e6141d9fff3be
Patch