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CVE-2022-48775

17
FAUCET Score

CVE-2022-48775 describes a memory leak vulnerability in the Linux kernel's vmbus driver, specifically within the vmbus_add_channel_kobj function. This flaw occurs because kobject_init_and_add() fails to properly release memory when it encounters an error, leading to resource exhaustion over time. Rated with a CVSS score of 5.5 (Medium), this vulnerability requires local access and low privileges to exploit, potentially resulting in a denial of service due to system instability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.15, < 4.19.231CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.181CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.102CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.25CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.11CPE 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
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
13.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 60th 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-2022-48775Moderate

kernel: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj

Jul 16, 2024

References

git.kernel.org / stable/c/417947891bd5ae327f15efed1a0da2b12ef24962
Mailing ListPatch
git.kernel.org / stable/c/8bc69f86328e87a0ffa79438430cc82f3aa6a194
Mailing ListPatch
git.kernel.org / stable/c/91d8866ca55232d21995a3d54fac96de33c9e20c
Mailing ListPatch
git.kernel.org / stable/c/92e25b637cd4e010f776c86e4810300e773eac5c
Mailing ListPatch
git.kernel.org / stable/c/c377e2ba78d3fe9a1f0b4ec424e75f81da7e81e9
Mailing ListPatch
git.kernel.org / stable/c/fe595759c2a4a5bb41c438474f15947d8ae32f5c
Mailing ListPatch