CVE-2024-43420 — Exposure of Sensitive Information caused by Shared Microarchitectural Predictor State that Influences Transient Execution in Intel-microcode

CWE-1423 — Exposure of Sensitive Information caused by Shared Microarchitectural Predictor State that Influences Transient Execution7 documents6 sources
Severity
5.7MEDIUMNVD
EPSS
0.1%
top 73.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Debian Intel-microcode
Timeline
PublishedMay 13
Latest updateMay 27

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.

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Affected Packages1 packages

▶debiandebian/intel-microcode< intel-microcode 3.20250512.1~deb12u1 (bookworm)

🔴Vulnerability Details

3
OSV
intel-microcode vulnerabilities↗2025-05-27
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OSV
CVE-2024-43420: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) proce↗2025-05-13
▶
GHSA
GHSA-6gp3-r6r7-wq4f: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) proce↗2025-05-13
▶

📋Vendor Advisories

3
Ubuntu
Intel Microcode vulnerabilities↗2025-05-27
▶
Red Hat
microcode_ctl: Exposure of sensitive information↗2025-05-13
▶
Debian
CVE-2024-43420: intel-microcode - Exposure of sensitive information caused by shared microarchitectural predictor ...↗2024
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