Security readout for executives and security teams
Plain-English summary
This is an old Google Chrome iframe flaw that could let a remote attacker break out of the browser sandbox through a crafted HTML page. The supplied record rates it Medium, not catastrophic, but sandbox boundaries are important because they limit damage from malicious web content.
Executive priority
Handle through standard browser patch management unless legacy Chrome is present in sensitive environments. Escalate if inventory shows unsupported browser versions on user endpoints or shared workstations.
Technical view
CVE-2019-25154 describes inappropriate iframe implementation in Google Chrome prior to 77.0.3865.75. The CVSS 3.1 score is 5.3, network reachable, low complexity, no privileges required, with limited availability impact. The source does not provide public exploit details or technical root-cause depth.
Likely exposure
Exposure is most likely on endpoints still running Google Chrome builds older than 77.0.3865.75. Current managed Chrome fleets are unlikely to be exposed if automatic updates and browser inventory are working.
Exploitation context
The provided sources describe potential exploitation through a crafted HTML page. They do not establish active exploitation, and the CVE is not listed as CISA KEV in the supplied bundle.
Researcher notes
The public bundle is sparse. It identifies the affected component as iframe and impact as potential sandbox escape, but does not provide CWE mapping, patch diff context, or exploitation evidence. Treat deeper analysis as dependent on Chromium issue access and vendor release notes.
Mitigation direction
- Update Google Chrome through the official stable channel.
- Prioritize systems with unmanaged or legacy browser installations.
- Confirm enterprise update policies are enforcing supported Chrome versions.
- Check Google guidance if version records conflict internally.
Validation and detection
- Inventory Chrome versions across endpoints and VDI images.
- Flag Chrome versions earlier than 77.0.3865.75 for remediation.
- Review browser update telemetry for failed or paused updates.
- Confirm the CVE is absent from KEV-based emergency queues.
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.
Privilege 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-2019-25154 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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:N/S:U/C:N/I:N/A:L3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2019/09/stable-channel-update-for-desktop.htmlCVE reference
- https://issues.chromium.org/issues/40094752CVE reference
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.