CVE-2026-46293
📛 CVE Title
clk: microchip: mpfs-ccc: fix out of bounds access during output registration
Description
In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix out of bounds access during output registration UBSAN reported an out of bounds access during registration of the last two outputs. This out of bounds access occurs because space is only allocated in the hws array for two PLLs and the four output dividers that each has, but the defined IDs contain two DLLS and their two outputs each, which are not supported by the driver. The ID order is PLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs by two while adding them to the array to avoid the problem.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 7.1 / 10
- CVSS vector
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H- Effective score
- 7.1 / 10 HIGH source: CNA overview
- MSRC score
- 7.1 / 10 HIGH MS rating: Important
- CWE(s)
- —
- Reserved
- —
- Published
- 2026-06-09 07:00 UTC
- Last updated
- 2026-06-20 01:43 UTC
- Source
- https://www.tenable.com/cve/CVE-2026-46293
- Linked Threat
- CVE-2026-46293 — CVE-2026-46293
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-06-08 17:16:47 UTC
- NVD last modified
- 2026-07-23 08:10:00 UTC
- NVD CVSS v3.1
- 7.1 / 10 HIGH source: nvd@nist.gov
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 5.2 / 10
- EPSS score
- 0.0013 (probability of exploitation in next 30 days)
- EPSS percentile
- 2.66% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01
NVD-assigned CWE(s):
CWE-125
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-08-01 16:31 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-35159 - Assigner
- Linux
- Published
- Jun 8, 2026, 3:46:20 PM
- Updated
- Jun 14, 2026, 6:07:01 PM
- EUVD base score
- 0.0 / 10
- EUVD-reported EPSS
- 0.1300
- Vendors
- Linux
- Products
-
Linux (patch: 6.6.140)Linux (d39fb172760e426e0628f16b785c85e16d17bd5e <a0780aeea166a7cf4706c45af4cadbb2a43a1fc9)Linux (d39fb172760e426e0628f16b785c85e16d17bd5e <9ed9b580a814773482c0a4f1be045636e68cc109)Linux (patch: 6.12.88)Linux (patch: 6.18.30)Linux (patch: 7.0.7)Linux (d39fb172760e426e0628f16b785c85e16d17bd5e <f24efd415455b98a1f1cfc6071fe6fde71986706)Linux (d39fb172760e426e0628f16b785c85e16d17bd5e <dbfcb09656cb30439577325c9dea2250203c2e3c)Linux (patch: 7.1)Linux (6.1)Linux (d39fb172760e426e0628f16b785c85e16d17bd5e <47bc7a03449c39805bc2665d3e57c73195d5bcf8)Linux (patch: 6.1.175)Linux (d39fb172760e426e0628f16b785c85e16d17bd5e <2f7ae8ab6aa73daaf080d5332110357c29df9c36)Linux (patch: 0)
- Aliases
-
GHSA-hjvh-379x-4g57
ENISA description: In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix out of bounds access during output registration UBSAN reported an out of bounds access during registration of the last two outputs. This out of bounds access occurs because space is only allocated in the hws array for two PLLs and the four output dividers that each has, but the defined IDs contain two DLLS and their two outputs each, which are not supported by the driver. The ID order is PLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs by two while adding them to the array to avoid the problem.
EUVD references (6)
- https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109
- https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8
- https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3c
- https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9
- https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706
- https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-07-23 03:00 UTC (source: CVRF).
- MS severity
- Important
- MS CVSS base score
- 7.1 / 10 (temporal 7.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H - Release
- 2026-Jun
Microsoft remediations / KB articles (2)
- CBL-Mariner Releases — Vendor Fix / Security Update (fixed build 6.6.141.1-1)
- https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade — None Available / CBL-Mariner Releases
Affected products — CPE 2.3 (1) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (10)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- None Available msrc
- MSRC update guide: CVE-2026-46293 msrc
- https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109 tenable:git.kernel.org
- https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9 tenable:git.kernel.org
- https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3c tenable:git.kernel.org
- https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706 tenable:git.kernel.org
- https://nvd.nist.gov/vuln/detail/CVE-2026-46293 tenable:nvd.nist.gov
- https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36 tenable:git.kernel.org
- https://www.cve.org/CVERecord?id=CVE-2026-46293 tenable:www.cve.org
- https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8 tenable:git.kernel.org
NVD-tagged references (6)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:blog.qualys.com
May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…
2026-06-19 02:38 UTC -
web:cybersecuritynews.com
Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.
2026-06-19 02:38 UTC -
web:msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-06-19 02:38 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-06-19 02:38 UTC -
web:www.computerworld.com
Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...
2026-06-19 02:38 UTC -
web:www.malwarebytes.com
Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.
2026-06-19 02:38 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-06-19 02:38 UTC -
web:www.oracle.com
This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.
2026-06-19 02:38 UTC -
web:www.veeam.com
When a vulnerability is identified, our team promptly develops a patch to address and mitigate the risk. In line with our dedication to transparency, we publicly disclose the vulnerability and provide detailed mitigation information.
2026-06-19 02:38 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-06-19 02:38 UTC
AI Forensic Analysis
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