CVE-2026-45941

CVEs › CVE-2026-45941

Description

In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_i2c_infineon: Fix locality leak on get_burstcount() failure get_burstcount() can return -EBUSY on timeout. When this happens, the function returns directly without releasing the locality that was acquired at the beginning of tpm_tis_i2c_send(). Use goto out_err to ensure proper cleanup when get_burstcount() fails.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 8.4 / 10
CVSS vector: AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Effective score: 8.4 / 10 HIGH source: CNA overview
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-27 12:17 UTC
Last updated: 2026-05-27 12:17 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/45xxx/CVE-2026-45941.json
Linked Threat: CVE-2026-45941 — CVE-2026-45941

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 14:17:10 UTC
NVD last modified: 2026-06-24 17:09:17 UTC
NVD CVSS v3.1: 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: 0.0012 (probability of exploitation in next 30 days)
EPSS percentile: 2.38% vs all CVEs — higher = more likely to be exploited, as of 2026-07-07

NVD-assigned CWE(s): CWE-401 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-07-07 14:44 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-2026-32225
Assigner: Linux
Published: May 27, 2026, 12:17:57 PM
Updated: May 27, 2026, 12:17:57 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1200
Vendors: Linux
Products: Linux (patch: 6.12.75)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <2f7a665e1323359d99c74301d1e180f5e2c40181)

Linux (patch: 0)

Linux (3.7)

Linux (patch: 6.6.128)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <948966e546f29af04391d98b8e378e4a7670c1c1)

Linux (patch: 6.1.165)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <c24c9c4cab11858f22f309521ba7ea5b1e7385f2)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <8f124c5582d443ac9fb690db26d08cab5d6ba76e)

Linux (patch: 5.15.202)

Linux (patch: 6.19.4)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <1bb8f8826d0748b4b92a98fb6b6dfe52081739f5)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <a61b8412e3eb8b71646dba867e8252d8560a1a27)

Linux (patch: 6.18.14)

Linux (patch: 5.10.252)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <1a22048c1117cdfac185ba450aba67ed6b65dc87)

Linux (patch: 7.0)

Linux (aad628c1d91a6db57e572e4c1f35e863d81061d7 <bbd6e97c836cbeb9606d7b7e5dcf8a1d89525713)
Aliases: GHSA-5p3c-43qg-83mf

ENISA description: In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_i2c_infineon: Fix locality leak on get_burstcount() failure get_burstcount() can return -EBUSY on timeout. When this happens, the function returns directly without releasing the locality that was acquired at the beginning of tpm_tis_i2c_send(). Use goto out_err to ensure proper cleanup when get_burstcount() fails.

EUVD references (8)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected), `aad628c1d91a6db57e572e4c1f35e863d81061d7` (affected)	—
Linux	Linux	`3.7` (affected), `0` (unaffected), `5.10.252` (unaffected), `5.15.202` (unaffected), `6.1.165` (unaffected), `6.6.128` (unaffected), `6.12.75` (unaffected), `6.18.14` (unaffected), `6.19.4` (unaffected), `7.0` (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 (8)

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

Web references (11)

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

https://git.kernel.org/stable/c/1a22048c1117cdfac185ba450aba67ed6b65dc87 tenable:git.kernel.org
https://git.kernel.org/stable/c/1bb8f8826d0748b4b92a98fb6b6dfe52081739f5 tenable:git.kernel.org
https://git.kernel.org/stable/c/2f7a665e1323359d99c74301d1e180f5e2c40181 tenable:git.kernel.org
https://git.kernel.org/stable/c/8f124c5582d443ac9fb690db26d08cab5d6ba76e tenable:git.kernel.org
https://git.kernel.org/stable/c/948966e546f29af04391d98b8e378e4a7670c1c1 tenable:git.kernel.org
https://git.kernel.org/stable/c/a61b8412e3eb8b71646dba867e8252d8560a1a27 tenable:git.kernel.org
https://git.kernel.org/stable/c/bbd6e97c836cbeb9606d7b7e5dcf8a1d89525713 tenable:git.kernel.org
https://git.kernel.org/stable/c/c24c9c4cab11858f22f309521ba7ea5b1e7385f2 tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-45941 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-45941 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

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.

https://git.kernel.org/stable/c/1a22048c1117cdfac185ba450aba67ed6b65dc87 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/1bb8f8826d0748b4b92a98fb6b6dfe52081739f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/2f7a665e1323359d99c74301d1e180f5e2c40181 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/8f124c5582d443ac9fb690db26d08cab5d6ba76e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/948966e546f29af04391d98b8e378e4a7670c1c1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/a61b8412e3eb8b71646dba867e8252d8560a1a27 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/bbd6e97c836cbeb9606d7b7e5dcf8a1d89525713 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/c24c9c4cab11858f22f309521ba7ea5b1e7385f2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch

Remediations (18)

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

Microsoft Defender Zero-Day Vulnerabilities: CVE-2026-41091 and CVE ...

web:aviatrix.ai

Microsoft has disclosed two critical zero-day vulnerabilities in Defender, actively exploited before patches were released. Learn about CVE - 2026 -41091 and CVE - 2026 -45498 and how to protect your systems.

2026-06-04 00:15 UTC
Mitigate RedSun Zero-Day Without A Patch | Qualys

web:blog.qualys.com

Key Takeaways RedSun is a critical zero-day vulnerability in Microsoft Defender that allows low-privileged users to gain SYSTEM access No patch is currently available, leaving all Defender-enabled Windows systems potentially exposed Qualys VMDR detects affected assets instantly (QID 92382) TruRisk™ Eliminate enables immediate mitigation , removing exploitability without waiting for a fix ...

2026-06-04 00:15 UTC
CISA Warns of Exploited Microsoft Defender 0-Day Flaws

web:cyberpress.org

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

2026-06-04 00:15 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 00:15 UTC
GitHub - 0xBlackash/CVE-2026-41091: CVE-2026-41091

web:github.com

CVE ID: CVE - 2026 -41091 Vulnerability Type: Improper Link Resolution Before File Access (CWE-59 - Link Following) Affected Component: Microsoft Malware Protection Engine Root Cause: Defender fails to properly resolve links/junctions during cloud-tagged file remediation /rollback, allowing redirection of privileged writes. Impact: Local authenticated attacker can escalate from standard user to ...

2026-06-04 00:15 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-06-04 00:15 UTC
Microsoft Defender Vulnerabilities Added to CISA KEV (CVE-2026-41091 ...

web:op-c.net

CISA added two actively exploited Microsoft Defender vulnerabilities, CVE - 2026 -41091 and CVE - 2026 -45498, to its KEV catalog. Learn the risks and recommended actions.

2026-06-04 00:15 UTC
Microsoft Patches Exploited UnDefend and RedSun Defender Zero ...

web:www.securityweek.com

Microsoft this week released patches for two vulnerabilities in Defender, warning they have been exploited in the wild as zero-days. The first, tracked as CVE - 2026 -41091 (CVSS score of 7.8), is described as a link-following issue that allows attackers to elevate their privileges to System. "Improper link resolution before file access ('link following') in Microsoft Defender allows an ...

2026-06-04 00:15 UTC
Microsoft confirms two major Defender security issues - TechRadar

web:www.techradar.com

Microsoft patches two actively exploited zero‑day flaws in Defender, tracked as CVE‑2026‑41091 (privilege escalation) and CVE‑2026‑45498 (denial of service) Updates were shipped ...

2026-06-04 00:15 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 00:15 UTC
Microsoft Confirms Defender RoguePlanet 0-Day Exploit and Working to ...

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 02:27 UTC
Customize exploit protection - Microsoft Defender for Endpoint

web:learn.microsoft.com

Warning Some security mitigation technologies may have compatibility issues with some applications. You should test exploit protection in all target use scenarios by using audit mode before deploying the configuration across a production environment or the rest of your network.

2026-06-19 02:27 UTC
Description of the security update for Microsoft Exchange Server 2019 ...

web:support.microsoft.com

Note: The fix for CVE - 2026 -45583 is not included in the Security Update, please follow the instructions mentioned in the CVE documentation to address this vulnerability.

2026-06-19 02:27 UTC
Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws

web:www.bleepingcomputer.com

Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities.

2026-06-19 02:27 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 02:27 UTC
Microsoft patches two zero-day flaws in Defender - CSO Online

web:www.csoonline.com

Microsoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or ...

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
Patch Tuesday - June 2026 - Rapid7

web:www.rapid7.com

Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.

2026-06-19 02:27 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-45941.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/tpm_i2c_infineon.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
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            },
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            },
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              "status": "unaffected",
              "version": "5.15.202",
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            },
            {
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              "status": "unaffected",
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            },
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            },
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              "version": "6.12.75",
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            },
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              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                },
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                },
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                  "versionStartIncluding": "3.7",
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                },
                {
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                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: tpm_i2c_infineon: Fix locality leak on get_burstcount() failure\n\nget_burstcount() can return -EBUSY on timeout. When this happens, the\nfunction returns directly without releasing the locality that was\nacquired at the beginning of tpm_tis_i2c_send().\n\nUse goto out_err to ensure proper cleanup when get_burstcount() fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:57.155Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8f124c5582d443ac9fb690db26d08cab5d6ba76e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c24c9c4cab11858f22f309521ba7ea5b1e7385f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bb8f8826d0748b4b92a98fb6b6dfe52081739f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/948966e546f29af04391d98b8e378e4a7670c1c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/a61b8412e3eb8b71646dba867e8252d8560a1a27"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a22048c1117cdfac185ba450aba67ed6b65dc87"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f7a665e1323359d99c74301d1e180f5e2c40181"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbd6e97c836cbeb9606d7b7e5dcf8a1d89525713"
        }
      ],
      "title": "tpm: tpm_i2c_infineon: Fix locality leak on get_burstcount() failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45941",
    "datePublished": "2026-05-27T12:17:57.155Z",
    "dateReserved": "2026-05-13T15:03:33.087Z",
    "dateUpdated": "2026-05-27T12:17:57.155Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}