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CVE-2022-49312

17
FAUCET Score

CVE-2022-49312 is a memory leak vulnerability in the Linux kernel's staging: rtl8712 driver, specifically within the r871xu_drv_init() function. This flaw occurs when r8712_init_drv_sw() fails, leading to unreleased memory allocated by r8712_alloc_io_queue(). The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring low privileges, and resulting in high availability impact. 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
< 5.10.122CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.47CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18, < 5.18.4CPE 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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd 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-2022-49312Low

kernel: staging: rtl8712: fix a potential memory leak in r871xu_drv_init()

Feb 26, 2025

References

git.kernel.org / stable/c/205e039fead72e87ad2838f5e649a4c4834f648b
Patch
git.kernel.org / stable/c/5a89a92efc342dd7c44b6056da87debc598f9c73
Patch
git.kernel.org / stable/c/7288ff561de650d4139fab80e9cb0da9b5b32434
Patch
git.kernel.org / stable/c/8eb42d6d10f8fe509117859defddf9e72b4fa4d0
Patch
git.kernel.org / stable/c/a2882b8baad068d21c99fb2ab5a85a2bdbd5b834
Patch