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CVE-2022-48720

17
FAUCET Score

CVE-2022-48720 is a resource leak vulnerability in the Linux kernel's MACsec offload support, affecting Linux kernel versions. This medium-severity vulnerability (CVSS 5.5) could lead to a high impact on confidentiality (C:H) due to unreleased hardware offload resources when a network device is unregistered. The attack vector is local (AV:L) with low attack complexity (AC:L), requiring low privileges (PR:L). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.6, < 5.10.99CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.22CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.8CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
5.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*

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:H/I:N/A:N

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

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
13.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 58th 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 Patches (2)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-48720Low

kernel: net: macsec: Fix offload support for NETDEV_UNREGISTER event

Jun 20, 2024

References

git.kernel.org / stable/c/2e7f5b6ee1a7a2c628253a95b0a95b582901ef1b
Patch
git.kernel.org / stable/c/8299be160aad8548071d080518712dec0df92bd5
Patch
git.kernel.org / stable/c/9cef24c8b76c1f6effe499d2f131807c90f7ce9a
Patch
git.kernel.org / stable/c/e7a0b3a0806dae3cc81931f0e83055ca2ac6f455
Patch