CVE catalog
CVE-2024-43420
Intel Microcode vulnerabilities
- Severity
- Medium · CVSS 5.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | intel-microcode | sid | 3.20260227.1 | fixed |
| Debian | intel-microcode | forky | 3.20260227.1 | fixed |
| Debian | intel-microcode | trixie | 3.20251111.1~deb13u1 | fixed |
| Debian | intel-microcode | trixie-security | 3.20250812.1~deb13u1 | fixed |
| Debian | intel-microcode | bookworm | 3.20251111.1~deb12u1 | fixed |
| Debian | intel-microcode | bookworm-security | 3.20250812.1~deb12u1 | fixed |
| Ubuntu | intel-microcode | noble | 3.20250512.1~deb12u1 | fixed |
| Ubuntu | intel-microcode | noble | 3.20250512.0ubuntu0.24.04.1 | fixed |
| Alpine | intel-ucode | 3.18 | 20250512-r0 | fixed |
| Alpine | intel-ucode | 3.19 | 20250512-r0 | fixed |
| Alpine | intel-ucode | 3.20 | 20250512-r0 | fixed |
| Alpine | intel-ucode | 3.21 | 20250512-r0 | fixed |
| Alpine | intel-ucode | 3.22 | 20250512-r0 | fixed |
| Alpine | intel-ucode | 3.23 | 20250512-r0 | fixed |
| Alpine | intel-ucode | 3.24 | 20250512-r0 | fixed |
| Ubuntu | intel-microcode | pro | 3.20170707.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20171117.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20180108.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20180108.1+really20171117.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20180312.0~ubuntu18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20180425.1~ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20180425.1~ubuntu0.18.04.2 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20180807a.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20190514.0ubuntu0.18.04.2 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20190514.0ubuntu0.18.04.3 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20190618.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20191112-0ubuntu0.18.04.2 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20191115.1ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20191115.1ubuntu0.18.04.2 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20200609.0ubuntu0.18.04.0 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20200609.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20201110.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20201110.0ubuntu0.18.04.2 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20210216.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20210608.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20220510.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20220809.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20230214.0ubuntu0.18.04.1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20230808.0ubuntu0.18.04.1+esm1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20231114.0ubuntu0.18.04.1+esm1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20240514.0ubuntu0.18.04.1+esm1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20240813.0ubuntu0.18.04.1+esm2 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20240910.0ubuntu0.18.04.1+esm1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20241112.0ubuntu0.18.04.1+esm1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20250211.0ubuntu0.18.04.1+esm1 | vulnerable |
| Ubuntu | intel-microcode | pro | 3.20250512.0ubuntu0.18.04.1+esm1 | fixed |
| Ubuntu | intel-microcode | 20.04 | 3.20190918.1ubuntu1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20191115.1ubuntu1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20191115.1ubuntu2 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20191115.1ubuntu3 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20200609.0ubuntu0.20.04.0 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20200609.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20200609.0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20201110.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20201110.0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20210216.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20210608.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20220510.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20220809.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20230214.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20230808.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20231114.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20240514.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20240813.0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20240910.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20241112.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20250211.0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | intel-microcode | 20.04 | 3.20250512.0ubuntu0.20.04.1 | fixed |
| Ubuntu | intel-microcode | 22.04 | 3.20210608.2ubuntu1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20220510.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20220809.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20230214.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20230808.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20231114.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20240514.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20240813.0ubuntu0.22.04.2 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20240910.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20241112.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20250211.0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | intel-microcode | 22.04 | 3.20250512.0ubuntu0.22.04.1 | fixed |
| Ubuntu | intel-microcode | 24.04 | 3.20230808.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20231114.0ubuntu1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20231114.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20240312.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20240312.1build1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20240514.0ubuntu0.24.04.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20240813.0ubuntu0.24.04.2 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20240910.0ubuntu0.24.04.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20241112.0ubuntu0.24.04.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20250211.0ubuntu0.24.04.1 | vulnerable |
| Ubuntu | intel-microcode | 24.04 | 3.20250512.0ubuntu0.24.04.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | intel-microcode | source | sid | 3.20250512.1 | not yet assigned | Not reported | [1105172] |
| Debian | intel-microcode | source | forky | 3.20250512.1 | not yet assigned | Not reported | [1105172] |
| Debian | intel-microcode | source | trixie | 3.20250512.1 | not yet assigned | Not reported | [1105172] |
| Debian | intel-microcode | source | bookworm | 3.20250512.1~deb12u1 | not yet assigned | Not reported | [1105172] |
| Ubuntu | intel-microcode | deb | noble | 3.20250512.1~deb12u1 | Not reported | Not reported | Not reported |
| Ubuntu | intel-microcode | deb | noble | 3.20250512.0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Alpine | intel-ucode | apk | 3.18 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Alpine | intel-ucode | apk | 3.19 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Alpine | intel-ucode | apk | 3.20 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Alpine | intel-ucode | apk | 3.21 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Alpine | intel-ucode | apk | 3.22 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Alpine | intel-ucode | apk | 3.23 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Alpine | intel-ucode | apk | 3.24 | 20250512-r0 | Not reported | ALPINE-CVE-2024-43420 | Not reported |
| Ubuntu | intel-microcode | deb | pro | 3.20250512.0ubuntu0.18.04.1+esm1 | Not reported | UBUNTU-CVE-2024-43420 | Not reported |
| Ubuntu | intel-microcode | deb | 20.04 | 3.20250512.0ubuntu0.20.04.1 | Not reported | UBUNTU-CVE-2024-43420 | Not reported |
| Ubuntu | intel-microcode | deb | 22.04 | 3.20250512.0ubuntu0.22.04.1 | Not reported | UBUNTU-CVE-2024-43420 | Not reported |
| Ubuntu | intel-microcode | deb | 24.04 | 3.20250512.0ubuntu0.24.04.1 | Not reported | UBUNTU-CVE-2024-43420 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [intel-microcode]Fixed
Details (1)
3.20251111.1~deb12u1· amd64 · bookwormFixed · Fixed:
3.20250512.1~deb12u1usn · intel-microcode · debian · bookworm; usn · intel-microcode · debian · 12
[Debian 13 (Trixie)]
- [intel-microcode]Fixed
Details (1)
3.20251111.1~deb13u1· amd64 · trixieFixed · Fixed:
3.20250512.1usn · intel-microcode · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHBA-2025:9433]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2025_10108.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2024-43420]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-43420]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-43420]
- [https://security-tracker.debian.org/tracker/CVE-2024-43420]
- [https://ubuntu.com/security/notices/USN-7535-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-1905.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]