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CVE-2026-46023

📛 CVE Title

dm mirror: fix integer overflow in create_dirty_log()

⬇ Download JSON ⚠ View as Threat

Description

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in create_dirty_log() The argument count calculation in create_dirty_log() performs `*args_used = 2 + param_count` before validating against argc. When a user provides a param_count close to UINT_MAX via the device mapper table string, this unsigned addition wraps around to a small value, causing the subsequent `argc < *args_used` check to be bypassed. The overflowed param_count is then passed as argc to dm_dirty_log_create(), where it can cause out-of-bounds reads on the argv array. Fix by comparing param_count against argc - 2 before performing the addition, following the same pattern used by parse_features() in the same file. Since argc >= 2 is already guaranteed, the subtraction is safe.

Overview

State
PUBLISHED
Assigner (CNA)
Linux
CVSS severity
high
CVSS score
CVSS 7.8 / 10 7.8 7.8 / 10
CVSS vector
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Effective score
7.8 / 10 HIGH source: CNA overview
MSRC score
3.4 / 10 LOW MS rating: Low
CWE(s)
—
Reserved
2026-05-13
Published
2026-05-27 12:56 UTC
Last updated
2026-06-01 16:17 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46023.json
Linked Threat
CVE-2026-46023 — CVE-2026-46023

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
2026-05-27 14:17:20 UTC
NVD last modified
2026-06-17 10:52:55 UTC
NVD CVSS v3.1
CVSS 5.5 / 10 5.5 5.5 / 10 MEDIUM source: nvd@nist.gov
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
1.8 / 10
Impact subscore
3.6 / 10
EPSS score
0.0013 (probability of exploitation in next 30 days)
EPSS percentile
3.02% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26

NVD-assigned CWE(s): CWE-190 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-07-27 10:55 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-2026-32404
Assigner
Linux
Published
May 27, 2026, 12:56:28 PM
Updated
Jun 14, 2026, 5:48:40 PM
EUVD base score
0.0 / 10
EUVD-reported EPSS
0.1300
Vendors
Linux
Products
Linux (patch: 5.10.258)
Linux (patch: 7.1)
Linux (2.6.12)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <17a08791d428885d00e510864283a7b839792368)
Linux (patch: 5.15.209)
Linux (patch: 6.6.140)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <35f6b3281efd44d19110574663bc17a610bc73b9)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <249c831183fb806c8e3b14c7c4c1d2fb68cf37fb)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ae59b3025609d5a0a39cf5b2b94e2467f6231573)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <47dad9eea75d33212d3d2cea10e7ed6a1bfc0713)
Linux (patch: 0)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e5e0ae3237584ebef510366c4cb3d5cc7c22b610)
Linux (patch: 6.12.86)
Linux (patch: 6.1.175)
Linux (patch: 7.0.4)
Linux (patch: 6.18.27)
Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4c788c6f921b22f9b6c3f316c4a071c05683e7de)
Aliases
GHSA-f54w-pgr9-9wv8

ENISA description: In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in create_dirty_log() The argument count calculation in create_dirty_log() performs `*args_used = 2 + param_count` before validating against argc. When a user provides a param_count close to UINT_MAX via the device mapper table string, this unsigned addition wraps around to a small value, causing the subsequent `argc < *args_used` check to be bypassed. The overflowed param_count is then passed as argc to dm_dirty_log_create(), where it can cause out-of-bounds reads on the argv array. Fix by comparing param_count against argc - 2 before performing the addition, following the same pattern used by parse_features() in the same file. Since argc >= 2 is already guaranteed, the subtraction is safe.

EUVD references (8)

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 2026-09-25 03:07 UTC (source: CVRF).

MS severity
Low
MS CVSS base score
3.4 / 10 (temporal 3.1)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L/E:U
Release
2026-May
Microsoft remediations / KB articles (2)

Affected products (2)
VendorProductVersionsPlatforms
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected), 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (affected) —
Linux Linux 2.6.12 (affected), 0 (unaffected), 5.10.258 (unaffected), 5.15.209 (unaffected), 6.1.175 (unaffected), 6.6.140 (unaffected), 6.12.86 (unaffected), 6.18.27 (unaffected), 7.0.4 (unaffected), 7.1-rc1 (unaffected) —

Affected products — CPE 2.3 (6) 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:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*

Vendor references (8)

References embedded in the original CVE record by the assigning CNA.

Web references (13)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

NVD-tagged references (8)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (20)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

  • Microsoft Patch Tuesday April 2026 - 168 Vulnerabilities Fixed ...
    web:cybersecuritynews.com

    Microsoft has released its April 2026 Patch Tuesday security update, addressing 168 vulnerabilities across its product portfolio including one actively exploited zero-day and one publicly disclosed flaw that organizations must prioritize immediately.

    2026-06-04 00:13 UTC
  • Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...
    web:cybersecuritynews.com

    Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

    2026-06-04 00:13 UTC
  • Security Update Guide - Microsoft
    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.

    2026-06-04 00:13 UTC
  • March 13, 2026—Hotpatch KB5084597 (OS Builds 26200.7982 and 26100.7982 ...
    web:support.microsoft.com

    This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...

    2026-06-04 00:13 UTC
  • Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...
    web:support.servicenow.com

    Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

    2026-06-04 00:13 UTC
  • April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

    2026-06-04 00:13 UTC
  • Oracle's first monthly patch release fixes 35 flaws, including 11 rated ...
    web:www.csoonline.com

    Oracle has released the first security fixes in its new monthly Critical Security Patch Update (CSPU) cycle, designed to address urgent vulnerabilities that can't wait for the company's ...

    2026-06-04 00:13 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    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.

    2026-06-04 00:13 UTC
  • Oracle Critical Security Patch Update Advisory - May 2026
    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.

    2026-06-04 00:13 UTC
  • Patch Tuesday June 2026: Security Updates & CVE Analysis
    web:zecurit.com

    Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

    2026-06-04 00:13 UTC
  • CVE-2026-46023 - Unknown Severity Vulnerability | CVEInfo.com
    web:cveinfo.com

    In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in create_dirty_log() The argument count calculation ...

    2026-06-19 02:27 UTC
  • In the Linux kernel, the following vulnerability has been...
    web:github.com

    The overflowed param_count is then passed as argc to dm_dirty_log_create (), where it can cause out-of-bounds reads on the argv array. Fix by comparing param_count against argc - 2 before performing the addition, following the same pattern used by parse_features () in the same file. Since argc >= 2 is already guaranteed, the subtraction is safe.

    2026-06-19 02:27 UTC
  • Cve-2026-46023
    web:kernel-team.pages.debian.net

    dm mirror: fix integer overflow in create_dirty_log () References Debian security tracker cve .org

    2026-06-19 02:27 UTC
  • The Official Fix Chocolate Bar | Dubai's Viral Chocolate Bars
    web:officialfixdessertchocolatier.com

    Indulge in Dubai's viral chocolate bars with FIX Dessert Chocolatier. Shop our hero collection featuring Baklawa, Knafeh, Biscoff, and more. Fast delivery in Dubai & Abu Dhabi. Order now!

    2026-06-19 02:27 UTC
  • CVE-2026-46023 - security-tracker.debian.org
    web:security-tracker.debian.org

    Vulnerable and fixed packages The table below lists information on source packages.

    2026-06-19 02:27 UTC
  • Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days
    web:www.bleepingcomputer.com

    Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

    2026-06-19 02:27 UTC
  • Microsoft working on a fix for RoguePlanet, a flaw that grants full PC ...
    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 02:27 UTC
  • Oracle Critical Patch Update Advisory - January 2026
    web:www.oracle.com

    Oracle Critical Patch Update Advisory - January 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical ...

    2026-06-19 02:27 UTC
  • CVE-2026-46023 | Tenable®
    web:www.tenable.com

    In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in create_dirty_log() The argument count calculation in create_dirty_log() performs `*args_used = 2 + param_count` before validating against argc. When a user provides a param_count close to UINT_MAX via the device mapper table string, this unsigned addition wraps around to a small value ...

    2026-06-19 02:27 UTC
  • CVE-2026-46023 - Medium Vulnerability - TheHackerWire
    web:www.thehackerwire.com

    CVE-2026-46023 is a Medium severity vulnerability (CVSS 5.5). In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in create_dirty_log() The argument count...

    2026-06-19 02:27 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46023.json.

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    "datePublished": "2026-05-27T12:56:28.756Z",
    "dateReserved": "2026-05-13T15:03:33.092Z",
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