Vulnerability · Published May 13, 2025 · Assigned by intel
CVE-2024-43420
Medium 5.6
In plain English
A medium-severity security flaw in Intel Atom(R) processors. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.6Medium
Exploit odds (30 days)0.2%top 89.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) processors may allow an authenticated user to potentially enable information disclosure via local access.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | microcode_ctl | 4:20250512-1.el8_10 | ALSA-2025:10991 |
| Alpine:v3.20 | intel-ucode | 20250512-r0 | ALPINE-CVE-2024-43420 |
| Alpine:v3.21 | intel-ucode | 20250512-r0 | ALPINE-CVE-2024-43420 |
| Alpine:v3.22 | intel-ucode | 20250512-r0 | ALPINE-CVE-2024-43420 |
| Alpine:v3.23 | intel-ucode | 20250512-r0 | ALPINE-CVE-2024-43420 |
| Alpine:v3.24 | intel-ucode | 20250512-r0 | ALPINE-CVE-2024-43420 |
| Debian:12 | intel-microcode | 3.20250512.1~deb12u1 | DSA-5924-1 |
| Debian:12 | intel-microcode | 3.20250512.1~deb12u1 | DEBIAN-CVE-2024-43420 |
| Debian:13 | intel-microcode | 3.20250512.1 | DEBIAN-CVE-2024-43420 |
| Debian:14 | intel-microcode | 3.20250512.1 | DEBIAN-CVE-2024-43420 |
| Rocky Linux:8 | microcode_ctl | 4:20250512-1.el8_10 | RLSA-2025:10991 |
| Ubuntu:22.04:LTS | intel-microcode | 3.20250512.0ubuntu0.22.04.1 | USN-7535-1 |
| Ubuntu:22.04:LTS | intel-microcode | 3.20250512.0ubuntu0.22.04.1 | UBUNTU-CVE-2024-43420 |
| Ubuntu:24.04:LTS | intel-microcode | 3.20250512.0ubuntu0.24.04.1 | UBUNTU-CVE-2024-43420 |
| Ubuntu:24.04:LTS | intel-microcode | 3.20250512.0ubuntu0.24.04.1 | USN-7535-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Intel Atom(R) processors | See references |
Weakness: CWE-1423 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N