CVE-2026-9897

Description

Use after free in DOM in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Overview

State

—

Assigner (CNA)

—

CVSS severity

MEDIUM

CVSS score

5.0 / 10

CVSS vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Effective score

5.0 / 10 MEDIUM source: CNA overview

CWE(s)

—

Reserved

—

Published

2026-06-01 00:00 UTC

Last updated

2026-06-19 14:40 UTC

Source

https://www.rapid7.com/db/vulnerabilities/debian-cve-2026-9897/

Linked Threat

CVE-2026-9897 — CVE-2026-9897

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

2026-05-28 23:16:47 UTC

NVD last modified

2026-07-21 11:10:00 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

0.0029 (probability of exploitation in next 30 days)

EPSS percentile

21.26% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

NVD-assigned CWE(s): CWE-416 (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-2026-33192

Assigner

Chrome

Published

May 28, 2026, 10:25:16 PM

Updated

May 30, 2026, 3:55:43 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

0.2900

Vendors

Google

Products

Chrome (148.0.7778.216 <148.0.7778.216)

Aliases

GHSA-9vgv-pvr7-xg5g

ENISA description: Use after free in DOM in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

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 03:02 UTC (source: CVRF).

Release

2026-May

Vendor references (0)

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

None in the CVE record.

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-2026-9897 msrc
• None Available msrc
• https://www.first.org/epss/ tenable:www.first.org
• https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html tenable:chromereleases.googleblog.com
• https://issues.chromium.org/issues/496271580 tenable:issues.chromium.org
• https://nvd.nist.gov/vuln/detail/CVE-2026-9897 tenable:nvd.nist.gov
• https://attackerkb.com/topics/CVE-2026-9897 rapid7:attackerkb.com
• http://cwe.mitre.org/data/definitions/416.html rapid7:cwe.mitre.org
• https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-33192 rapid7:euvd.enisa.europa.eu
• https://www.cve.org/CVERecord?id=CVE-2026-9897 rapid7:www.cve.org

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

• Rapid7 — Solution
  rapid7

  google-chrome-upgrade-latest

  2026-06-04 08:58 UTC
• Rapid7 — Solution
  rapid7

  debian-upgrade-chromium

  2026-06-04 08:55 UTC
• Exchange Server Vulnerability CVE-2026-42897 - Icewolf Blog
  web:blog.icewolf.ch

  Addressing Exchange Server May 2026 vulnerability CVE - 2026 -42897 CVE - 2026 -42897 I've already written about the Exchange Emergency Mitigation Service here Exchange Server October 2022 Security Updates released Exchange Emergency Mitigation Service Exchange Emergency Mitigation Service is enabled by default.

  2026-06-19 02:29 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 02:29 UTC
• Addressing Exchange Server May 2026 vulnerability CVE-2026-42897
  web:techcommunity.microsoft.com

  UPDATE June 9, 2026 : Please see our release blog post for June 2026 Security Update for more information on this CVE : Released: June 2026 Exchange Server Security Updates | Microsoft Community Hub. On May 14, 2026 , Microsoft disclosed CVE - 2026 -42897, a reported vulnerability affecting Exchange Outlook Web Access (OWA). An attacker could exploit this issue by sending a specially crafted email ...

  2026-06-19 02:29 UTC
• Microsoft Exchange Server Spoofing Vulnerability Exploited in Attack ...
  web:threatprotect.qualys.com

  With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.

  2026-06-19 02:29 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.

  2026-06-19 02:29 UTC
• Microsoft warns of Exchange zero-day flaw exploited in attacks
  web:www.bleepingcomputer.com

  On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow threat actors to execute arbitrary code via cross-site scripting (XSS ...

  2026-06-19 02:29 UTC
• ED 25-02: Mitigate Microsoft Exchange Vulnerability - CISA
  web:www.cisa.gov

  This page contains a web-friendly version of the Cybersecurity and Infrastructure Security Agency's Emergency Directive 25-02: Mitigate Microsoft Exchange Vulnerability. Section 3553 (h) of title 44, U.S. Code, authorizes the Secretary of Homeland Security, in response to a known or reasonably suspected information security threat, vulnerability, or incident that represents a substantial ...

  2026-06-19 02:29 UTC
• Microsoft Confirms Active 0-Day Exploit—Check Emergency Mitigation
  web:www.forbes.com

  Updated May 18: This article has been updated to include further details on the emergency mitigation process recommended by Microsoft after the CVE - 2026 -42897 Exchange Server zero-day was ...

  2026-06-19 02:29 UTC
• Exchange Server OWA Zero-Day CVE-2026-42897 Exploited With No Permanent ...
  web:www.techtimes.com

  Exchange Server OWA Zero-Day CVE - 2026 -42897 Exploited With No Permanent Patch and New Mitigation Gaps Microsoft's emergency fix for on-premises Exchange breaks OWA calendar printing and leaves ...

  2026-06-19 02:29 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 .

  2026-06-19 02:29 UTC

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