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CVE-2023-53703

11
FAUCET Score

CVE-2023-53703 is a shift-out-of-bounds vulnerability in the AMD SFH HID driver within the Linux kernel. This flaw occurs when shift operations on 'exp' and 'shift' variables exceed the maximum allowed values for a u32 type, leading to a kernel crash. The severity is moderate, as it can lead to a denial of service (system crash) due to incorrect input handling in the driver. While it requires local access to trigger, the complexity is low once the conditions are met. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability. It is not listed in the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
6.0CNA affecteddefault affected
LinuxLinux
>= 93ce5e0231d79189be4d9e5f9295807b18941419, < 1e50bc2c177d4b2953d77037ac46ea0702d6aa1f, >= 93ce5e0231d79189be4d9e5f9295807b18941419, < 5a45ed1ae34bb0e68944471f4bafb68e0a572791, >= 93ce5e0231d79189be4d9e5f9295807b18941419, < 87854366176403438d01f368b09de3ec2234e0f5CNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
9.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Patches (2)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-53703Moderate

kernel: HID: amd_sfh: Fix for shift-out-of-bounds

Oct 22, 2025

References

git.kernel.org / stable/c/1e50bc2c177d4b2953d77037ac46ea0702d6aa1f
git.kernel.org / stable/c/5a45ed1ae34bb0e68944471f4bafb68e0a572791
git.kernel.org / stable/c/87854366176403438d01f368b09de3ec2234e0f5