CVE-2026-7898

Description

Use after free in Chromoting in Google Chrome on Linux prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)

Overview

State: PUBLISHED
Assigner (CNA): Chrome
CVSS severity: high
CVSS score: 8.8 / 10
CVSS vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Effective score: 8.8 / 10 HIGH source: CNA overview
CWE(s): CWE-416
Reserved: 2026-05-06
Published: 2026-05-06 20:12 UTC
Last updated: 2026-05-07 05:56 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/7xxx/CVE-2026-7898.json
Linked Threat: CVE-2026-7898 — CVE-2026-7898

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: 2026-05-06 19:16:38 UTC
NVD last modified: 2026-05-06 23:43:09 UTC
NVD CVSS v3.1: 8.8 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0008 (probability of exploitation in next 30 days)
EPSS percentile: 23.56% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

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-2026-27899
Assigner: Chrome
Published: May 6, 2026, 6:12:25 PM
Updated: May 7, 2026, 3:56:01 AM
EUVD base score (CVSS 3.1): 8.8 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0800
Vendors: Google
Products: Chrome (148.0.7778.96 <148.0.7778.96)

ENISA description: Use after free in Chromoting in Google Chrome on Linux prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)

EUVD references (2)

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 2026-08-15 03:01 UTC (source: CVRF).

Release: 2026-May

Microsoft remediations / KB articles (2)

Release Notes — Vendor Fix / Security Update (fixed build 148.0.3967.54)
https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security — None Available / Release Notes

Microsoft FAQ (2)

Why is this Chrome CVE included in the Security Update Guide?

The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable.

How can I see the version of the browser?

In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window
Click on Help and Feedback
Click on About Microsoft Edge

What is the version information for this release?

Microsoft Edge Version	Date Released	Based on Chromium Version
148.0.3967.54	05/07/2026	148.0.7778.97

Affected products (1)

Vendor	Product	Versions	Platforms
Google	Chrome	`148.0.7778.96` (affected)	—

Affected products — CPE 2.3 (2) 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:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Vendor references (2)

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

MITRE references (2) cveawg.mitre.org

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

Web references (9)

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

None Available msrc
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-7898 rapid7:msrc.microsoft.com
https://attackerkb.com/topics/CVE-2026-7898 rapid7:attackerkb.com
http://cwe.mitre.org/data/definitions/416.html rapid7:cwe.mitre.org
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-27899 rapid7:euvd.enisa.europa.eu
https://www.securityweek.com/chrome-148-rolls-out-with-127-security-fixes/ tenable:www.securityweek.com
https://www.cve.org/CVERecord?id=CVE-2026-7898 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org
https://nvd.nist.gov/vuln/detail/CVE-2026-7898 tenable:nvd.nist.gov

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://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html chrome-cve-admin@google.com Vendor Advisory
https://issues.chromium.org/issues/504587882 chrome-cve-admin@google.com Issue TrackingPermissions Required

Remediations (19)

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

CVE-2026-7898 - Vulnerability Details - OpenCVE

web:app.opencve.io

Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Update Google Chrome to version 148..7778.96 or later. Disable the Chromoting feature via Chrome policy or remove the remote desktop extension. Block or restrict RDP/remote desktop traffic on your network firewall for machines that do not require the feature.

2026-05-23 21:11 UTC
Microsoft Defender CVE-2026-41091 and CVE-2026-45498 Exploited

web:blog.gridinsoft.com

Microsoft has confirmed exploitation of two Microsoft Defender vulnerabilities fixed in the May 2026 security update cycle. CVE - 2026 -41091 is an elevation-of-privilege flaw in the Microsoft Malware Protection Engine, while CVE - 2026 -45498 is a denial-of-service flaw in the Microsoft Defender Antimalware Platform . The first bug matters more for incident response because a local authorized ...

2026-05-23 21:11 UTC
Microsoft Patch Tuesday, September 2025 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited ...

2026-05-23 21:11 UTC
Nvd - Cve-2026-7898

web:nvd.nist.gov

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

2026-05-23 21:11 UTC
How to Use Known Issue Rollback to Fix Problems Caused by Windows ...

web:petri.com

If a Group Policy setting is available to roll back a fix , it is included in the Windows Update KB article and release notes as a mitigation for a known issue.

2026-05-23 21:11 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 21:11 UTC
Microsoft warns of new Defender zero-days exploited in attacks

web:www.bleepingcomputer.com

On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks.

2026-05-23 21:11 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.

2026-05-23 21:11 UTC
2 New Microsoft Defender Zero-Days Exploited—Patch Now ... - Forbes

web:www.forbes.com

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

2026-05-23 21:11 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 21:11 UTC
Windows Kerberos RC4 deprecation: what will break in Active ... - 4sysops

web:4sysops.com

Starting in April 2026 , Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE - 2026 -20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...

2026-05-26 02:48 UTC
CVE-2026-7898 - CVE.report

web:cve.report

Use after free in Chromoting in Google Chrome on Linux prior to 148..7778.96 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)

2026-05-26 02:48 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 .

2026-05-26 02:48 UTC
Six Patch Management Best Practices [Updated 2026]

web:heimdalsecurity.com

Explore six essential patch management best practices for 2026 to keep your systems secure, up to date, and protected from vulnerabilities.

2026-05-26 02:48 UTC
CVE‑2026‑42898: Remote Code Execution in Microsoft Dynamics 365 On ...

web:integsec.com

A technical appendix below provides detection, remediation , and best‑practice guidance for your security and IT teams. S1 — Background & History CVE‑2026‑42898 was publicly disclosed on May 12, 2026 , and is assigned to an improper control of code generation in Microsoft Dynamics 365 on‑premises.

2026-05-26 02:48 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 ...

2026-05-26 02:48 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.

2026-05-26 02:48 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.

2026-05-26 02:48 UTC
Microsoft's Patch Tuesday Update Targets 120 Security Flaws

web:www.techrepublic.com

Microsoft's May Patch Tuesday fixes 120 flaws, including 31 remote code execution bugs, with no zero-days reported at release.

2026-05-26 02:48 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2026-7898.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-7898",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-07T03:56:01.611Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Chrome",
          "vendor": "Google",
          "versions": [
            {
              "lessThan": "148.0.7778.96",
              "status": "affected",
              "version": "148.0.7778.96",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Use after free in Chromoting in Google Chrome on Linux prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "Use after free",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T18:12:25.175Z",
        "orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
        "shortName": "Chrome"
      },
      "references": [
        {
          "url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html"
        },
        {
          "url": "https://issues.chromium.org/issues/504587882"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
    "assignerShortName": "Chrome",
    "cveId": "CVE-2026-7898",
    "datePublished": "2026-05-06T18:12:25.175Z",
    "dateReserved": "2026-05-05T22:59:03.686Z",
    "dateUpdated": "2026-05-07T03:56:01.611Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}