CVE & CISA-KEV Catalog

CVE-2023-49141

HIGH
7.8
CVSS v3
NVD

Description

Improper isolation in some Intel(R) Processors stream cache mechanism may allow an authenticated user to potentially enable escalation of privilege via local access.

CWE-1189

How to fix

Remediation Available
intel-microcodeDebian
Fixed in:3.20240514.1~deb11u1CVE-2023-49141
Fixed in:3.20240514.1~deb12u1CVE-2023-49141
Fixed in:3.20240514.1CVE-2023-49141
Fixed in:3.20240514.1CVE-2023-49141
intel-microcodeUbuntu
Fixed in:3.20240813.0ubuntu0.16.04.1+esm2USN-6967-1
Fixed in:3.20240813.0ubuntu0.18.04.1+esm2USN-6967-1
Fixed in:3.20240813.0ubuntu0.20.04.2USN-6967-1
Fixed in:3.20240813.0ubuntu0.22.04.2USN-6967-1
Fixed in:3.20240813.0ubuntu0.24.04.2USN-6967-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.29%probability of exploitation in 30 days
21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Related Vulnerabilities

Other CWE-1189 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-54518High7.00.3%-Fix
CVE-2023-42667High7.80.2%-Fix
CVE-2023-31325High7.20.1%--
CVE-2024-36332Medium6.80.1%--
CVE-2025-54514Unscored-0.1%--

Common questions

How do I fix CVE-2023-49141?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2023-49141 being actively exploited?

Not that we know of. CVE-2023-49141 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.29% is the estimated probability that it will be exploited in the next 30 days. That is higher than 21% of all scored CVEs.

How severe is CVE-2023-49141?

CVE-2023-49141 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-49141 affect?

Published advisories record a fix for intel-microcode (Debian), intel-microcode (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-03-14.