Security readout for executives and security teams
Plain-English summary
This Chrome flaw was a use-after-free bug in protocol handling before version 92.0.4515.107. A remote attacker could potentially trigger heap corruption through a crafted HTML page. For leaders, the main concern is outdated desktop Chrome installations exposed to web browsing risk.
Executive priority
Treat as a prompt browser hygiene issue, especially for fleets with unmanaged endpoints. No source evidence indicates active exploitation, but remote browser heap corruption justifies rapid version validation and cleanup.
Technical view
CVE-2021-30574 is described as a use-after-free vulnerability in Google Chrome protocol handling. The public record says Chrome versions before 92.0.4515.107 could be affected, with possible heap corruption from crafted HTML content. No CVSS, CWE, or detailed exploit mechanics are provided in the source bundle.
Likely exposure
Organizations may be exposed where desktop Chrome installations remain below 92.0.4515.107, including unmanaged endpoints, older Linux packages, or gold images that missed browser updates.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. The attack context is remote web content: a user reaching attacker-controlled or compromised HTML could potentially trigger the bug.
Researcher notes
Public detail is limited. The Chrome bug tracker reference is included, but the bundle does not provide exploitability details, root-cause internals, CVSS, or CWE mapping. Avoid assuming code execution or active exploitation beyond the stated heap-corruption potential.
Mitigation direction
- Update Chrome to 92.0.4515.107 or later.
- Confirm Fedora Chromium packages include the referenced security updates.
- Prioritize unmanaged desktops, VDI images, and kiosks using Chrome.
- Check current Google or OS vendor guidance for any later superseding fixes.
Validation and detection
- Inventory Chrome versions across endpoints and images.
- Flag any Chrome installation older than 92.0.4515.107.
- Review Linux package versions against Fedora advisory updates where applicable.
- Confirm browser auto-update policies are enabled and reporting successfully.
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.
CVE-2021-30574 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop_20.htmlCVE reference · x_refsource_MISC
- https://crbug.com/1227315CVE reference · x_refsource_MISC
- FEDORA-2021-78b9d84299CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-6225d60814CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-02b301441fCVE reference · vendor-advisory, x_refsource_FEDORA
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.