Known exploited vulnerability · CISA KEV

CVE-2024-53197: Linux Kernel Out-of-Bounds Access Vulnerability

Linux Kernel contains an out-of-bounds access vulnerability in the USB-audio driver that allows an attacker with physical access to the system to use a malicious USB device to potentially manipulate system memory, escalate privileges, or execute arbitrary code.

CVE-2024-53197

Exploited in the wild. Fix this first.

CISA added it to the Known Exploited Vulnerabilities catalog on 2025-04-09: attackers are using it right now.

CISA KEV: Listed; Added 2025-04-09 · federal fix-by 2025-04-30
EPSS (30 days): 4.1%; Higher than 91% of CVEs · 2026-11-01
CVSS v3.1: 7.8 High; CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What CISA says

Linux Kernel Out-of-Bounds Access Vulnerability

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

NVD description · published 2024-12-27

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devices A bogus device can provide a bNumConfigurations value that exceeds the initial value used in usb_get_configuration for allocating dev->config. This can lead to out-of-bounds accesses later, e.g. in usb_destroy_configuration.

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How to check if you are exposed to CVE-2024-53197

Find every Linux Kernel system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
Compare each version with the fixed versions in the vendor advisory below. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2024-53197.

US federal agencies had to fix this by 2025-04-30. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.

Affected versions

Versions the National Vulnerability Database lists as vulnerable to CVE-2024-53197. Check the vendor advisory for the exact fixed builds before you sign anything off.

Product	Vulnerable versions
Linux Kernel	from 2.6.12 before 4.19.325; from 4.20 before 5.4.287; from 5.5 before 5.10.231; from 5.11 before 5.15.174; from 5.16 before 6.1.120; from 6.2 before 6.6.64 and 2 more
Debian Linux	11.0

Timeline

2024-12-27 · Published in the National Vulnerability Database
2025-04-09 · Added to CISA's Known Exploited Vulnerabilities catalog, 103 days after it was published
2025-04-30 · Fix-by date for US federal agencies, passed 550 days ago

Vendor advisories and fixes

Weakness type

CWE-787

More exploited Linux vulnerabilities

CISA lists 32 exploited Linux vulnerabilities. The closest matches:

Keep going

Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.