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CVE-2023-53679

20
FAUCET Score

CVE-2023-53679 is an integer underflow vulnerability in the Linux kernel's mt7601u Wi-Fi driver, affecting Linux kernel versions. An attacker can manipulate the 'dma_len' variable in a URB packet, leading to an integer underflow that bypasses checks and causes a null pointer dereference. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, potentially leading to high availability impact (system crash). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.2, < 5.4.235CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.173CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.99CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.2.3CPE 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
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 26th 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

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-513.5.1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-362.8.1.el9_3
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-53679Moderate

kernel: wifi: mt7601u: fix an integer underflow

Oct 7, 2025

References

git.kernel.org / stable/c/1a1f43059afae5cc9409e0c3bc63bfc09bc8facb
Patch
git.kernel.org / stable/c/47dc1f425af57b71111d7b01ebd24e04e8d967ef
Patch
git.kernel.org / stable/c/61d0163e2be7a439cf6f82e9ad7de563ecf41e7a
Patch
git.kernel.org / stable/c/67e4519afba215199b6dfa39ce5d7ea673ee4138
Patch
git.kernel.org / stable/c/803f3176c5df3b5582c27ea690f204abb60b19b9
Patch
git.kernel.org / stable/c/d0db59e2f718d1e2f1d2a2d8092168fdd2f3add0
Patch