CVE-2026-46068

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.

Overview

State: PUBLISHED
Assigner (CNA): Linux
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: 5.5 / 10 MEDIUM MS rating: Moderate
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-27 12:57 UTC
Last updated: 2026-05-27 12:57 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46068.json
Linked Threat: CVE-2026-46068 — CVE-2026-46068

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 14:17:27 UTC
NVD last modified: 2026-06-24 17:03:51 UTC
NVD CVSS v3.1: 7.8 / 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:H/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0013 (probability of exploitation in next 30 days)
EPSS percentile: 2.91% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-787 (differs from the CNA list above)

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-2026-32450
Assigner: Linux
Published: May 27, 2026, 12:57:48 PM
Updated: Jun 14, 2026, 5:51:58 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1300
Vendors: Linux
Products: Linux (ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c)

Linux (patch: 6.12.88)

Linux (ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <5c07962fed66e1238fad7635fa150570bd38b4c5)

Linux (ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <910bb34b801d39794e656f7d48414844b2bd354e)

Linux (ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <80fd99d7c30ea889662d21f1b44d8fea4c83138d)

Linux (4.2)

Linux (patch: 6.6.141)

Linux (patch: 7.0.4)

Linux (patch: 0)

Linux (ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <f17a4850d1ce7c11cba8b1830b9bfedfede878bb)

Linux (patch: 7.1)

Linux (patch: 6.18.27)
Aliases: GHSA-55j4-rv4x-vqmx

ENISA description: In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.

EUVD references (5)

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 2026-08-12 01:09 UTC (source: CVRF).

MS severity: Moderate
MS CVSS base score: 5.5 / 10 (temporal 5.5)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Release: 2026-May

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 (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`ed70b479c2c0b6e1319f0cb2de19f1051be219a4` (affected), `ed70b479c2c0b6e1319f0cb2de19f1051be219a4` (affected), `ed70b479c2c0b6e1319f0cb2de19f1051be219a4` (affected), `ed70b479c2c0b6e1319f0cb2de19f1051be219a4` (affected), `ed70b479c2c0b6e1319f0cb2de19f1051be219a4` (affected)	—
Linux	Linux	`4.2` (affected), `0` (unaffected), `6.6.141` (unaffected), `6.12.88` (unaffected), `6.18.27` (unaffected), `7.0.4` (unaffected), `7.1-rc1` (unaffected)	—

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 (5)

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

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.

MSRC update guide: CVE-2026-46068 msrc
None Available msrc
https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e tenable:git.kernel.org
https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c tenable:git.kernel.org
https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-46068 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-46068 tenable:www.cve.org
https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5 tenable:git.kernel.org
https://www.first.org/epss/ tenable:www.first.org
https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d tenable:git.kernel.org

NVD-tagged references (5)

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/5c07962fed66e1238fad7635fa150570bd38b4c5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch

Remediations (17)

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

Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review

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…

2026-06-04 00:12 UTC
Android June 2026 update patches actively exploited zero-day

web:cyberinsider.com

Google has released the June 2026 Android security updates, addressing a zero-day flaw that is under active, targeted exploitation.

2026-06-04 00:12 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 00:12 UTC
Patch Tuesday, May 2026 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft expects that exploitation is more likely. May's Patch Tuesday is a welcome respite from April, which saw Microsoft fix a near-record 167 security flaws.

2026-06-04 00:12 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 00:12 UTC
Microsoft May 2026 Patch Tuesday Fixes 120 Flaws

web:thecyberexpress.com

Microsoft has rolled out its May 2026 Patch Tuesday security updates, delivering fixes for approximately 120 vulnerabilities across Windows, Microsoft Office, networking services, and enterprise platforms.

2026-06-04 00:12 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 00:12 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 00:12 UTC
Patch Tuesday May 2026 - PDQ

web:www.pdq.com

May 2026 Patch Tuesday is here, and PDQ is back with another recap. Will we see another month of increased CVE volume? Is AI to blame? Dive in to learn more.

2026-06-04 00:12 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 00:12 UTC
SAP Security Patch Day - February 2026

web:support.sap.com

SAP security Patch Day Bulletin

2026-06-19 02:28 UTC
Microsoft is working on a patch for 'YellowKey ... - Computerworld

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 02:28 UTC
CVE Record: CVE-2026-4680

web:www.cve.org

Vulnerability detail for CVE - 2026 -4680 Notice: Expanded keyword searching of CVE Records (with limitations) is now available in the search box above. Learn more here.

2026-06-19 02:28 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 02:28 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

2026-06-19 02:28 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.

2026-06-19 02:28 UTC
Vulnerabilities Resolved in Veeam Backup & Replication 13.0.1.2067

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 02:28 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46068.json.

{
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          "product": "Linux",
          "programFiles": [
            "drivers/crypto/nx/nx-842.c"
          ],
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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            }
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      ],
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx\n\nThe bounce buffers are allocated with __get_free_pages() using\nBOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error\npath and nx842_crypto_free_ctx() release the buffers with free_page().\nUse free_pages() with the matching order instead."
        }
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      "providerMetadata": {
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      ],
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    "datePublished": "2026-05-27T12:57:48.457Z",
    "dateReserved": "2026-05-13T15:03:33.095Z",
    "dateUpdated": "2026-05-27T12:57:48.457Z",
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