Is CVE-2023-39368 in the CISA KEV catalog?

No. CVE-2023-39368 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-39368?

CVE-2023-39368 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2023-39368?

CVE-2023-39368 has an EPSS score of 0.75% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-39368?

Upgrade intel-microcode on debian 11 to 3.20240312.1~deb11u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-39368

MEDIUM

6.5

CVSS v3

NVD

Description

Protection mechanism failure of bus lock regulator for some Intel(R) Processors may allow an unauthenticated user to potentially enable denial of service via network access.

CWE-693Protection Mechanism Failure

How to fix

Remediation Available

intel-microcodeDebian

Fixed in:3.20240312.1~deb11u1CVE-2023-39368

Fixed in:3.20240312.1~deb12u1CVE-2023-39368

Fixed in:3.20240312.1CVE-2023-39368

microcode_ctlRocky

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

microcode_ctlRed Hat / RHEL

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.75%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-693 (Protection Mechanism Failure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-2465	Critical	9.8	99%	KEV + Ransom	-
CVE-2024-21412	High	8.1	95%	KEV + Ransom	Fix
CVE-2013-0431	Medium	5.3	90%	KEV + Ransom	-
CVE-2025-40536	High	8.1	82%	KEV	Fix
CVE-2019-1003030	Critical	9.9	76%	KEV	-
CVE-2025-0411	High	7.0	67%	KEV	Fix

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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.