CVE-2026-45871

CVEs › CVE-2026-45871

Description

In the Linux kernel, the following vulnerability has been resolved: tpm: st33zp24: Fix missing cleanup on get_burstcount() error get_burstcount() can return -EBUSY on timeout. When this happens, st33zp24_send() returns directly without releasing the locality acquired earlier. 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 12:15 UTC
Last updated: 2026-05-27 12:15 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/45xxx/CVE-2026-45871.json
Linked Threat: CVE-2026-45871 — CVE-2026-45871

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 14:17:00 UTC
NVD last modified: 2026-06-25 21:06:23 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: 0.0016 (probability of exploitation in next 30 days)
EPSS percentile: 5.88% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26

NVD / KEV / EPSS data refreshed 2026-07-27 11:56 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-2026-32337
Assigner: Linux
Published: May 27, 2026, 12:15:51 PM
Updated: May 27, 2026, 12:15:51 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1600
Vendors: Linux
Products: Linux (patch: 6.12.75)

Linux (patch: 5.10.252)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <e0ce3da82341fcd6194175f1837946b2a894c625)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <a51cff9be046e13e1c1b2fe45d5c48b582ec9b8c)

Linux (patch: 6.1.165)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <ec15eb67fe9df87981b4829b901ec254273ca483)

Linux (patch: 0)

Linux (patch: 6.19.4)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <4fffb77d35d038f146e6192da583dbe4971d869e)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <cc09d55f519e15355de343264a22ac6682b8305e)

Linux (4.1)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <3e91b44c93ad2871f89fc2a98c5e4fe6ca5db3d9)

Linux (patch: 6.18.14)

Linux (patch: 5.15.202)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <7687133509cf66ced120b667fefd21f80bf17993)

Linux (bf38b8710892333cec2d8069644eb36ff435fd6f <1256c6dc96d1e687e6e9b63088156ed07411b00c)

Linux (patch: 6.6.128)

Linux (patch: 7.0)
Aliases: GHSA-x542-jg8f-r599

ENISA description: In the Linux kernel, the following vulnerability has been resolved: tpm: st33zp24: Fix missing cleanup on get_burstcount() error get_burstcount() can return -EBUSY on timeout. When this happens, st33zp24_send() returns directly without releasing the locality acquired earlier. Use goto out_err to ensure proper cleanup when get_burstcount() fails.

EUVD references (8)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected), `bf38b8710892333cec2d8069644eb36ff435fd6f` (affected)	—
Linux	Linux	`4.1` (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/1256c6dc96d1e687e6e9b63088156ed07411b00c tenable:git.kernel.org
https://git.kernel.org/stable/c/3e91b44c93ad2871f89fc2a98c5e4fe6ca5db3d9 tenable:git.kernel.org
https://git.kernel.org/stable/c/4fffb77d35d038f146e6192da583dbe4971d869e tenable:git.kernel.org
https://git.kernel.org/stable/c/7687133509cf66ced120b667fefd21f80bf17993 tenable:git.kernel.org
https://git.kernel.org/stable/c/a51cff9be046e13e1c1b2fe45d5c48b582ec9b8c tenable:git.kernel.org
https://git.kernel.org/stable/c/cc09d55f519e15355de343264a22ac6682b8305e tenable:git.kernel.org
https://git.kernel.org/stable/c/e0ce3da82341fcd6194175f1837946b2a894c625 tenable:git.kernel.org
https://git.kernel.org/stable/c/ec15eb67fe9df87981b4829b901ec254273ca483 tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-45871 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-45871 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/1256c6dc96d1e687e6e9b63088156ed07411b00c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/3e91b44c93ad2871f89fc2a98c5e4fe6ca5db3d9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/4fffb77d35d038f146e6192da583dbe4971d869e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/7687133509cf66ced120b667fefd21f80bf17993 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/a51cff9be046e13e1c1b2fe45d5c48b582ec9b8c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/cc09d55f519e15355de343264a22ac6682b8305e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/e0ce3da82341fcd6194175f1837946b2a894c625 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/ec15eb67fe9df87981b4829b901ec254273ca483 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch

Remediations (19)

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

Micropatches - 0patch

web:0patch.com

Fixing what's really important. The goal of 0patch is not to micropatch every vulnerability but the important ones, such as those exploited in the wild or those without official vendor patches. These are some of our most popular micropatches.

2026-06-04 00:16 UTC
CVE-2026-41089 Netlogon RCE: Patch Domain Controllers

web:blog.gridinsoft.com

CVE - 2026 -41089 in Windows Netlogon is now reported as actively exploited. Patch domain controllers and check LSASS, Netlogon, and authentication logs.

2026-06-04 00:16 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 00:16 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 00:16 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 00:16 UTC
CVE-2026-42897 Exchange OWA Mitigation M2: What Admins Must Verify

web:windowsforum.com

The mitigation name administrators should verify for CVE - 2026 -42897 is M2. Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition are affected at any update level, while Exchange Online is not affected.

2026-06-04 00:16 UTC
CISA orders feds to patch exploited Fortinet EMS flaw by Friday

web:www.bleepingcomputer.com

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered federal agencies to secure FortiClient Enterprise Management Server (EMS) instances against an actively exploited ...

2026-06-04 00:16 UTC
Microsoft Patch Tuesday - May 2026 - Lansweeper

web:www.lansweeper.com

Which vulnerabilities, issues, and other things did Microsoft update? Discover what's new using Lansweeper's Patch Tuesday May 2026 summary.

2026-06-04 00:16 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 00:16 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 00:16 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-06-19 02:27 UTC
NVD - Home

web:nvd.nist.gov

The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...

2026-06-19 02:27 UTC
Security Update Guide - Loading - 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.

2026-06-19 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
May 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft has released security updates for 130 vulnerabilities, including 30 critical, in its May 2026 Patch Tuesday rollout.

2026-06-19 02:27 UTC
Microsoft fixes six zero-days on February 2026 Patch Tuesday

web:www.csoonline.com

Microsoft highlighted six new and actively exploited vulnerabilities among the 60 fixes issued in today's February Patch Tuesday releases.

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 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.

2026-06-19 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-2026-45871.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/st33zp24/st33zp24.c"
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          "vendor": "Linux",
          "versions": [
            {
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              "version": "4.1"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
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            },
            {
              "lessThanOrEqual": "6.1.*",
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            },
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            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
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            },
            {
              "lessThanOrEqual": "6.18.*",
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            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                },
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                },
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                  "versionStartIncluding": "4.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: st33zp24: Fix missing cleanup on get_burstcount() error\n\nget_burstcount() can return -EBUSY on timeout. When this happens,\nst33zp24_send() returns directly without releasing the locality\nacquired earlier.\n\nUse goto out_err to ensure proper cleanup when get_burstcount() fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:15:51.317Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/1256c6dc96d1e687e6e9b63088156ed07411b00c"
        },
        {
          "url": "https://git.kernel.org/stable/c/a51cff9be046e13e1c1b2fe45d5c48b582ec9b8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc09d55f519e15355de343264a22ac6682b8305e"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec15eb67fe9df87981b4829b901ec254273ca483"
        },
        {
          "url": "https://git.kernel.org/stable/c/4fffb77d35d038f146e6192da583dbe4971d869e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e91b44c93ad2871f89fc2a98c5e4fe6ca5db3d9"
        }
      ],
      "title": "tpm: st33zp24: Fix missing cleanup on get_burstcount() error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45871",
    "datePublished": "2026-05-27T12:15:51.317Z",
    "dateReserved": "2026-05-13T15:03:33.081Z",
    "dateUpdated": "2026-05-27T12:15:51.317Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}