CVE-2024-21803

Name: CVE-2024-21803
Creator: NVD / NIST
Published: 2024-01-30T08:15:41.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2024-21803 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Use After Free vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (bluetooth modules) allows Local Execution of Code. This vulnerability is associated with program files https://gitee.Com/anolis/cloud-kernel/blob/devel-5.10/net/bluetooth/af_bluetooth.C. This issue affects Linux kernel: from v2.6.12-rc2 before v6.8-rc1. . EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

Use After Free vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (bluetooth modules) allows Local Execution of Code. This vulnerability is associated with program files https://gitee.Com/anolis/cloud-kernel/blob/devel-5.10/net/bluetooth/af_bluetooth.C. This issue affects Linux kernel: from v2.6.12-rc2 before v6.8-rc1.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.50%

38.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 2.6.12.1, <= 6.6.8	—
Linux	Linux Kernel	2.6.12	Rc2
Linux	Linux Kernel	6.7	Rc1

References

https://bugzilla.openanolis.cn/show_bug.cgi?id=8081Issue Tracking, Permissions Required
https://bugzilla.openanolis.cn/show_bug.cgi?id=8081Issue Tracking, Permissions Required

Timeline

Published: Jan 30, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-21803?

How severe is CVE-2024-21803?

CVE-2024-21803 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-21803?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST