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CVE-2022-48705

17
FAUCET Score

CVE-2022-48705 is a vulnerability in the Linux kernel's mt76 mt7921e Wi-Fi driver that can lead to a system crash. This occurs when the driver fails to re-enable/schedule "tx_napi" after disabling it during a chip reset failure, causing a deadlock. 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 (system crash). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.16.3, < 5.19.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*

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
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 46th 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 (4)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
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-2022-48705Low

kernel: wifi: mt76: mt7921e: fix crash in chip reset fail

May 3, 2024

References

git.kernel.org / stable/c/f7f3001723e337568017e8617974f29bc8b2f595
Patch
git.kernel.org / stable/c/fa3fbe64037839f448dc569212bafc5a495d8219
Patch