PT-2024-38657 · Arm+1 · Arm Cortex-M Security Extensions+1

Published 2024-10-31 · Updated 2026-04-25 · CVE-2024-7883

Positive Technologies (AI Summary)

CVSS v3.1

3.7

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions Arm Cortex-M Security Extensions (CMSE) (affected versions not specified)

Description The issue allows Secure stack contents to be leaked to Non-secure state via floating-point registers when a Secure to Non-secure function call is made that returns a floating-point value and when this is the first use of floating-point since entering Secure state. This enables an attacker to read a limited quantity of Secure stack contents, impacting confidentiality. The issue is specific to code generated using LLVM-based compilers.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-226

Related Identifiers

AZL-53888

CVE-2024-7883

ECHO-5E0E-5634-4E9C

OESA-2026-1968

OESA-2026-2072

OESA-2026-2073

OESA-2026-2074

Affected Products

Arm Cortex-M Security Extensions

Debian

References · 26

• 🔥 https://developer.arm.com/Arm%20Security%20Center/Cortex-M%20Security%20Extensions%20Vulnerability · Exploit
• https://security-tracker.debian.org/tracker/CVE-2024-7883 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-7883 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-53888 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-7883 · Security Note
• https://osv.dev/vulnerability/CVE-2024-7883 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-7883 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-7883 · Security Note
• https://osv.dev/vulnerability/OESA-2026-1968 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2073 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-7883 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2074 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2072 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-7883 · Vendor Advisory
• https://github.com/llvm/llvm-project/pull/114433 · Note