CVE-2024-7883 | CMSE secure state may leak from stack to floating-point registers

Exp

When using Arm Cortex-M Security Extensions (CMSE), Secure stack contents can 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 allows an attacker to read a limited quantity of Secure stack contents with an impact on confidentiality. This issue is specific to code generated using LLVM-based compilers.

Published: 2024-10-31 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-7883 is rated Exploit Available (50/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.48%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-7883

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-7883

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.37% 0.48% +0.11%
2 2026-03-22 0.27% 0.37% +0.10%
3 2025-12-24 — 0.27% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-7883

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 1.4 [email protected]

Weakness enumeration for CVE-2024-7883

OS Trackers for CVE-2024-7883

vendor priority summary link
debian unimportant CVE-2024-7883 unimportant priority: Debian including 7 source packages (llvm-toolchain-14, llvm-toolchain-15, …), 14 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 9, resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-7883
redhat low — https://access.redhat.com/security/cve/CVE-2024-7883
suse medium CVE-2024-7883 severity moderate: SUSE including 105 source package names (clang, clang-checker, …), 720 product×package rows across 37 product lines (SUSE Linux Enterprise High Performance Computing 12 SP5, SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS, … (37 product lines)): Known Not Affected 720. https://www.suse.com/security/cve/CVE-2024-7883/
ubuntu low CVE-2024-7883 low priority: Ubuntu including 9 source packages (llvm-toolchain-11, llvm-toolchain-12, …), 63 status rows across 7 suites (focal, jammy, noble, oracular, plucky, questing, upstream): DNE 25, needed 16, ignored 12, needs-triage 8, released 2. https://ubuntu.com/security/CVE-2024-7883

Affected software / configurations for CVE-2024-7883

Vendor Product Version Raw CPE
arm arm_compiler_for_embedded >= 6.6, < 6.23 cpe:2.3:a:arm:arm_compiler_for_embedded:*:*:*:*:*:*:*:*
arm arm_compiler_for_embedded_fusa 6.16 cpe:2.3:a:arm:arm_compiler_for_embedded_fusa:6.16:*:*:*:lts:*:*:*
arm arm_compiler_for_embedded_fusa 6.21 cpe:2.3:a:arm:arm_compiler_for_embedded_fusa:6.21:*:*:*:lts:*:*:*
arm arm_compiler_for_functional_safety 6.6 cpe:2.3:a:arm:arm_compiler_for_functional_safety:6.6:*:*:*:*:*:*:*
arm clang >= 11.0.0, < 20.1.0 cpe:2.3:a:arm:clang:*:*:*:*:*:*:*:*

References for CVE-2024-7883

cvelogic Threat Intelligence