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CVE-2024-7883

15
FAUCET Score

CVE-2024-7883 describes a vulnerability in Arm Cortex-M Security Extensions (CMSE) when used with LLVM-based compilers. It allows secure stack contents to be leaked to the non-secure state via floating-point registers under specific conditions during a secure-to-non-secure function call returning a floating-point value. This vulnerability affects Arm Compiler for Embedded, Arm Compiler for Embedded FuSa, Arm Compiler for Functional Safety, and Arm Clang. The vulnerability has a CVSS score of 3.7 (LOW), indicating a low impact on confidentiality with high attack complexity and no user interaction required. An attacker could read a limited quantity of secure stack contents. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.6, < 6.23CPE matchmatch criteria
cpe:2.3:a:arm:arm_compiler_for_embedded:*:*:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:a:arm:arm_compiler_for_embedded_fusa:6.16:*:*:*:lts:*:*:*
6.21CPE matchmatch criteria
cpe:2.3:a:arm:arm_compiler_for_embedded_fusa:6.21:*:*:*:lts:*:*:*
6.6CPE matchmatch criteria
cpe:2.3:a:arm:arm_compiler_for_functional_safety:6.6:*:*:*:*:*:*:*
>= 11.0.0, < 20.1.0CPE matchmatch criteria
cpe:2.3:a:arm:clang:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.7LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 24th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia msrc
Product: 17549-17084Fixed in: 18.1.2-4
microsoftpatch availablevia msrc
Product: azl3 clang 18.1.2-4 on Azure Linux 3.0Fixed in: 18.1.2-4
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: llvm-toolset:rhel8/clang
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: clang

Vendor Advisories (2)

redhatCVE-2024-7883Low

clang: CMSE secure state may leak from stack to floating-point registers

Oct 31, 2024
microsoft2024-Oct/CVE-2024-7883Low

CMSE secure state may leak from stack to floating-point registers

Oct 8, 2024

References

developer.arm.com / Arm%20Security%20Center/Cortex-M%20Security%20Extensions%20Vulnerability
ExploitVendor Advisory