CVE-2026-45393

Description

Reserved. Details will be published at disclosure.

Overview

State: PUBLISHED
Assigner (CNA): Cribl
CVSS severity: critical
CVSS score: 9.8 / 10
CVSS vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Effective score: 9.8 / 10 CRITICAL source: CNA overview
CWE(s): —
Reserved: 2026-05-12
Published: 2026-05-12 03:06 UTC
Last updated: 2026-05-15 22:04 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/45xxx/CVE-2026-45393.json
Linked Threat: CVE-2026-45393 — CVE-2026-45393

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: 2026-05-12 02:16:13 UTC
NVD last modified: 2026-05-15 21:16:37 UTC
NVD CVSS v3.1: 9.8 / 10 CRITICAL source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0008 (probability of exploitation in next 30 days)
EPSS percentile: 22.38% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD-assigned CWE(s): CWE-20 (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-2026-29358
Assigner: Cribl
Published: May 12, 2026, 1:06:27 AM
Updated: May 15, 2026, 8:04:21 PM
EUVD base score (CVSS 3.1): 9.8 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0800
Vendors: Cribl
Products: Cribl Edge (0 <4.17.1)

ENISA description: Reserved. Details will be published at disclosure.

EUVD references (2)

Affected products (1)

Vendor	Product	Versions	Platforms
Cribl	Cribl Edge	`0` (affected)	Windows

Vendor references (2)

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

Cribl Edge 4.17.1 Security Fixes release-notes
Cribl Trust Portal vendor-advisory

MITRE references (2) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Cribl Edge 4.17.1 Security Fixes release-notes
Cribl Trust Portal vendor-advisory

Web references (3)

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

https://nvd.nist.gov/vuln/detail/CVE-2026-45393 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-45393 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (2)

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://docs.cribl.io/edge/release-notes/release-v4171#security-fixes af879a92-7297-456a-bb0e-905ac6c64bdc
https://trust.cribl.io/notifications af879a92-7297-456a-bb0e-905ac6c64bdc

Remediations (11)

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

cve-details - Red Hat Customer Portal

web:access.redhat.com

Learn about our open source products, services, and company. You are here

2026-05-23 20:58 UTC
CVE-2026-45393 - Vulnerability Details - OpenCVE

web:app.opencve.io

Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Regularly review Cribl's release notes and security advisories for patch availability. Apply the vendor's official patch or upgrade to a patched version of Cribl Edge as soon as it is released.

2026-05-23 20:58 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 .

2026-05-23 20:58 UTC
Microsoft Patch Tuesday March 2026 - 78 Vulnerabilities Fixed ...

web:cybersecuritynews.com

Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026 , addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE - 2026 -21262, the sole zero-day ...

2026-05-23 20:58 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.

2026-05-23 20:58 UTC
Emergency patch issued for Microsoft Office, 365 over hacking threat - MSN

web:www.msn.com

Original story: Microsoft has released an emergency patch for a vulnerability in the company's Office programs that's already being exploited by hackers.

2026-05-23 20:58 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.

2026-05-23 20:58 UTC
Windows 11's Secure Boot fix update finally rolls out to ... - PCWorld

web:www.pcworld.com

Windows 11's Secure Boot fix update finally rolls out to more PCs Important security certificates for Windows 11 will soon expire for many users.

2026-05-23 20:58 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-05-23 20:58 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

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

2026-05-23 20:58 UTC
Nvd - Cve-2026-40393

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-26 02:53 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-45393.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
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                  },
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                  },
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                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-05-15T10:57:55.624673Z",
                "version": "2.0.3"
              },
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            }
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        "problemTypes": [
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                "description": "CWE-20 Improper Input Validation",
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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          "versions": [
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        },
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          "name": "Cribl Trust Portal",
          "tags": [
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          ],
          "url": "https://trust.cribl.io/notifications"
        }
      ],
      "source": {
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  "cveMetadata": {
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    "dateReserved": "2026-05-12T01:05:53.672Z",
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