Security readout for executives and security teams
Plain-English summary
Chrome versions before 150.0.7871.182 contain a Chromecast input-validation flaw. A local attacker could potentially use malicious network traffic to escape Chrome’s sandbox, threatening sensitive data, system integrity, and availability. Google rates the Chromium issue High; the supplied CVSS assessment is 9.3 Critical.
Executive priority
Treat as an urgent browser update because a sandbox escape can undermine a major security boundary without user interaction. Prioritize broad version discovery and rapid deployment, while noting that active exploitation is not established by the supplied evidence.
Technical view
CVE-2026-16414 is a CWE-20 insufficient-input-validation vulnerability in Chrome’s Chromecast component. The supplied vector indicates local access, low complexity, no privileges, no user interaction, scope change, and high confidentiality, integrity, and availability impact. Successful exploitation could permit a sandbox escape through malicious network traffic.
Likely exposure
Endpoints running Google Chrome earlier than 150.0.7871.182 are potentially exposed. The source bundle does not establish which operating systems, network configurations, or Chromecast usage patterns are required, so organizations should inventory all desktop Chrome installations rather than assume limited exposure.
Exploitation context
The supplied sources do not report active exploitation, and the CVE is not listed as KEV in the bundle. They describe a local attacker using malicious network traffic, but do not establish exact prerequisites, public proof-of-concept availability, or observed attacks.
Researcher notes
The CVSS vector and description support severe sandbox-escape impact, but public details in the bundle are limited. The affected listing names 150.0.7871.182 while the description says versions prior to it are vulnerable; validate this boundary against Google’s release advisory. Avoid interpreting absence from KEV as proof exploitation has not occurred.
Mitigation direction
- Update Google Chrome to 150.0.7871.182 or later through approved enterprise channels.
- Prioritize endpoints on untrusted or shared networks until updates are confirmed.
- Review Google and Chromium guidance for any additional mitigations or revised affected-version details.
- Apply normal network segmentation and least-privilege controls while remediation is underway.
Validation and detection
- Inventory installed Chrome versions and identify every endpoint below 150.0.7871.182.
- Confirm managed browsers completed updating and restarted where required.
- Verify update compliance through endpoint-management or browser-management reporting.
- Monitor vendor advisories and the Chromium issue for changed exploitation or remediation information.
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-20: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-16414 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
- Critical
- CVSS
- 9.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/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.
SSVC decision data
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:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H2.56CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.3CriticalVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0256605430.htmlCVE reference, Chrome
- https://issues.chromium.org/issues/517651910CVE reference, Chrome
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.