CVE-2023-23583

HIGHEPSS 75th pctl

8.8

CVSS v3

Description

Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege and/or information disclosure and/or denial of service via local access.

CWE-1281 CWE-276

How to fix

Remediation Available

intel-microcodeDebian

Fixed in:3.20231114.1~deb11u1CVE-2023-23583

Fixed in:3.20231114.1~deb12u1CVE-2023-23583

Fixed in:3.20231114.1CVE-2023-23583

intel-microcodeUbuntu

Fixed in:3.20231114.0ubuntu0.16.04.1+esm1USN-6485-1

Fixed in:3.20231114.0ubuntu0.18.04.1+esm1USN-6485-1

Fixed in:3.20231114.0ubuntu0.20.04.1USN-6485-1

Fixed in:3.20231114.0ubuntu0.22.04.1USN-6485-1

Fixed in:3.20231114.0ubuntu0.23.04.1USN-6485-1

Fixed in:3.20231114.0ubuntu0.23.10.1USN-6485-1

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.73%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory1

intel.com

Third-Party Advisory6

Mailing List2

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-1281 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-56301	High	7.5	0.6%	-	-
CVE-2023-46103	Medium	4.7	0.3%	-	Fix
CVE-2024-37020	Low	3.8	0.2%	-	Fix
CVE-2025-22840	High	7.4	0.1%	-	Fix

Common questions

How do I fix CVE-2023-23583?

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-2023-23583 being actively exploited?

Not that we know of. CVE-2023-23583 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 75% of all scored CVEs.

How severe is CVE-2023-23583?

CVE-2023-23583 has a CVSS v3 base score of 8.8, 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-2023-23583 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 2025-01-07.