Security readout for executives and security teams
Plain-English summary
CVE-2026-2649 is a high-severity Google Chrome flaw in the V8 JavaScript engine. A malicious webpage could potentially corrupt browser memory if a user visits it. For businesses, the main urgency is broad desktop browser exposure and the possibility of data theft, browser compromise, or disruption if Chrome is not updated.
Executive priority
Treat this as a near-term browser patching priority. It is high severity, remotely reachable through browsing, and affects a widely deployed application. No cited source confirms active exploitation, so prioritize rapid routine patching rather than emergency incident response unless internal telemetry shows suspicious browser activity.
Technical view
Google describes an integer overflow in V8 affecting Chrome prior to 145.0.7632.109. The CVSS 3.1 score is 8.8, with network attack vector, low complexity, no privileges required, and user interaction required. The stated impact is potential heap corruption via a crafted HTML page.
Likely exposure
Organizations with managed or unmanaged Google Chrome desktop installations below 145.0.7632.109 are potentially exposed. Exposure depends on whether users can browse attacker-controlled or compromised websites. The source bundle does not identify other affected Chromium-based products.
Exploitation context
The vulnerability is remotely reachable through web content, but it requires user interaction such as opening a crafted page. The source bundle does not indicate active exploitation, and the CVE is not marked as CISA KEV. Public technical details may be limited because the Chromium issue may restrict access.
Researcher notes
Key constraints are user interaction and browser version. The public description names V8 integer overflow and potential heap corruption but does not provide exploit mechanics. Avoid assuming exploit availability or affected Chromium derivatives without vendor confirmation. Track the Chrome release post, CVE record, and Chromium issue for updates.
Mitigation direction
- Update Google Chrome to 145.0.7632.109 or later.
- Prioritize managed desktop fleets and high-risk user groups.
- Confirm auto-update policies are functioning across endpoints.
- Check Google Chrome release guidance for any additional instructions.
Validation and detection
- Inventory Chrome versions across managed and unmanaged endpoints.
- Flag installations below 145.0.7632.109 for remediation.
- Verify browser update completion after deployment.
- Review Chrome release notes and CVE records for changes.
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-472: 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-2026-2649 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.
External Control of Assumed-Immutable Web Parameter
External Control of Assumed-Immutable Web Parameter represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.