CVE-2025-20623
published 2025-05-13CVE-2025-20623: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ processors…
PriorityP422medium5.6CVSS 3.1
AVLACHPRLUINSCCHINAN
EPSS
0.15%
4.4th percentile
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ processors (10th Generation) may allow an authenticated user to potentially enable information disclosure via local access.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | intel-microcode | < intel-microcode 3.20250512.1~deb12u1 (bookworm) | intel-microcode 3.20250512.1~deb12u1 (bookworm) |
CVSS provenance
nvdv3.15.6MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
nvdv4.05.7MEDIUMCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
osv5.7MEDIUM
vendor_debian5.7MEDIUM
vendor_redhat5.7MEDIUM
vendor_ubuntu5.6MEDIUM
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Ubuntu
Intel Microcode vulnerabilities
vendor_ubuntu·2025-05-27·CVSS 5.6
CVE-2024-45332 [MEDIUM] Intel Microcode vulnerabilities
Title: Intel Microcode vulnerabilities
Summary: Several security issues were fixed in Intel Microcode.
Sander Wiebing and Cristiano Giuffrida discovered that some Intel®
Processors did not properly handle data in Shared Microarchitectural
Structures during Transient Execution. An authenticated attacker could
possibly use this issue to obtain sensitive information. (CVE-2024-28956)
It was discovered that some Intel® Processors did not properly handle
prediction calculations. An authenticated attacker could possibly use this
issue to obtain sensitive information. (CVE-2024-43420, CVE-2024-45332,
CVE-2025-20623)
It was discovered that some Intel® Processors did not properly initialize
resources in the branch prediction unit. An authenticated attacker could
possibly use this issue to obtai
Red Hat
microcode_ctl: Exposure of sensitive information
vendor_redhat·2025-05-13·CVSS 5.7
CVE-2025-20623 [MEDIUM] CWE-1423 microcode_ctl: Exposure of sensitive information
microcode_ctl: Exposure of sensitive information
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ processors (10th Generation) may allow an authenticated user to potentially enable information disclosure via local access.
Package: microcode_ctl (Red Hat Enterprise Linux 10) - Not affected
Package: microcode_ctl (Red Hat Enterprise Linux 6) - Fix deferred
Debian
CVE-2025-20623: intel-microcode - Exposure of sensitive information caused by shared microarchitectural predictor ...
vendor_debian·2025·CVSS 5.7
CVE-2025-20623 [MEDIUM] CVE-2025-20623: intel-microcode - Exposure of sensitive information caused by shared microarchitectural predictor ...
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ processors (10th Generation) may allow an authenticated user to potentially enable information disclosure via local access.
Scope: local
bookworm: resolved (fixed in 3.20250512.1~deb12u1)
bullseye: resolved (fixed in 3.20250512.1~deb11u1)
forky: resolved (fixed in 3.20250512.1)
sid: resolved (fixed in 3.20250512.1)
trixie: resolved (fixed in 3.20250512.1)
OSV
intel-microcode vulnerabilities
osv·2025-05-27·CVSS 5.7
CVE-2024-28956 [MEDIUM] intel-microcode vulnerabilities
intel-microcode vulnerabilities
Sander Wiebing and Cristiano Giuffrida discovered that some Intel®
Processors did not properly handle data in Shared Microarchitectural
Structures during Transient Execution. An authenticated attacker could
possibly use this issue to obtain sensitive information. (CVE-2024-28956)
It was discovered that some Intel® Processors did not properly handle
prediction calculations. An authenticated attacker could possibly use this
issue to obtain sensitive information. (CVE-2024-43420, CVE-2024-45332,
CVE-2025-20623)
It was discovered that some Intel® Processors did not properly initialize
resources in the branch prediction unit. An authenticated attacker could
possibly use this issue to obtain sensitive information. (CVE-2025-20012,
CVE-2025-24495)
Michal Raviv
GHSA
GHSA-fv2p-m3fq-rq6h: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ proc
ghsa_unreviewed·2025-05-13
CVE-2025-20623 [MEDIUM] GHSA-fv2p-m3fq-rq6h: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ proc
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ processors (10th Generation) may allow an authenticated user to potentially enable information disclosure via local access.
OSV
CVE-2025-20623: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ proc
osv·2025-05-13·CVSS 5.7
CVE-2025-20623 [MEDIUM] CVE-2025-20623: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ proc
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core™ processors (10th Generation) may allow an authenticated user to potentially enable information disclosure via local access.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-05-13
Published