Security readout for executives and security teams
Plain-English summary
CVE-2026-1862 is a high-severity flaw in Chrome’s V8 JavaScript engine. A user visiting a maliciously crafted HTML page could allow an attacker to corrupt browser memory, potentially leading to code execution or browser compromise. No provided source states active exploitation.
Executive priority
Treat as a prompt browser-update priority. It is remotely reachable through web content and has high impact, but requires user interaction and has no cited active exploitation in the provided sources.
Technical view
The issue is CWE-843 type confusion in V8 affecting Google Chrome before 144.0.7559.132. CVSS 3.1 is 8.8: network attack vector, low complexity, no privileges required, user interaction required, with high confidentiality, integrity, and availability impact.
Likely exposure
Organizations with desktop Chrome installations older than 144.0.7559.132 are potentially exposed. Risk is higher where users browse untrusted sites, open links from email, or use unmanaged browsers. Microsoft’s advisory should be checked for any Microsoft-product applicability.
Exploitation context
Exploitation requires persuading a user to open a crafted HTML page. The provided sources do not indicate CISA KEV listing or confirmed active exploitation. Chromium issue details may be restricted, so public technical detail appears limited.
Researcher notes
Public evidence identifies V8 type confusion and heap corruption via crafted HTML, but does not provide exploit mechanics. Avoid assuming exploit availability. Validate scope against Chrome release notes, the CVE record, Chromium issue visibility, and MSRC’s advisory.
Mitigation direction
- Update Google Chrome to 144.0.7559.132 or later.
- Confirm automatic browser updates are enabled and functioning.
- Review Microsoft MSRC guidance for any Microsoft product exposure.
- Prioritize unmanaged endpoints and high-risk browsing populations.
Validation and detection
- Inventory Chrome versions across managed and unmanaged endpoints.
- Flag Chrome versions earlier than 144.0.7559.132.
- Confirm update telemetry after deployment.
- Check vulnerability scanners for CVE-2026-1862 detection coverage.
- Monitor vendor advisories for revised affected-product guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-843: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-1862 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Access of Resource Using Incompatible Type ('Type Confusion')
Access of Resource Using Incompatible Type ('Type Confusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.