Is CVE-2023-46103 in the CISA KEV catalog?

No. CVE-2023-46103 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-46103?

CVE-2023-46103 has a CVSS v3 base score of 4.7 (MEDIUM).

What is the EPSS score for CVE-2023-46103?

CVE-2023-46103 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-46103?

Upgrade intel-microcode on debian 11 to 3.20240514.1~deb11u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-46103

MEDIUM

4.7

CVSS v3

NVD

Description

Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM) Ultra Processors may allow an authenticated user to potentially enable denial of service via local access.

CWE-1281

How to fix

Remediation Available

intel-microcodeDebian

Fixed in:3.20240514.1~deb11u1CVE-2023-46103

Fixed in:3.20240514.1~deb12u1CVE-2023-46103

Fixed in:3.20240514.1CVE-2023-46103

microcode_ctlRocky

Fixed in:4:20240910-1.el9_5RHSA-2024:9401

Fixed in:4:20230808-2.20240531.1.el9_4RHEA-2024:7620

Fixed in:4:20240910-1.el9_5RHSA-2024:9401

microcode_ctlRed Hat / RHEL

Fixed in:4:20230808-2.20240531.1.el9_4RHEA-2024:7620

Fixed in:4:20240910-1.el9_5RHSA-2024:9401

Fixed in:4:20230808-2.20240531.1.el9_4RHEA-2024:7620

intel-microcodeUbuntu

Fixed in:3.20240514.0ubuntu0.16.04.1+esm1USN-6797-1

Fixed in:3.20240514.0ubuntu0.18.04.1+esm1USN-6797-1

Fixed in:3.20240514.0ubuntu0.20.04.1USN-6797-1

Fixed in:3.20240514.0ubuntu0.22.04.1USN-6797-1

Fixed in:3.20240514.0ubuntu0.23.10.1USN-6797-1

Fixed in:3.20240514.0ubuntu0.24.04.1USN-6797-1

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

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Other references1

intel.com

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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 2024-11-21.