Security readout for executives and security teams
Plain-English summary
This Chrome flaw could let a malicious web page corrupt browser memory on systems running Google Chrome before 92.0.4515.107. The public bundle does not show active exploitation or CVSS scoring, but browser memory corruption reachable from web content should be treated as a meaningful endpoint risk.
Executive priority
Prioritize remediation in normal emergency browser patch cycles. The issue is remotely reachable through web content, but the provided evidence does not show active exploitation or a confirmed critical rating.
Technical view
CVE-2021-30579 is a use-after-free in Chrome's UI framework before version 92.0.4515.107. The CVE description says a remote attacker could potentially exploit heap corruption through a crafted HTML page. Public details are limited; the Chromium bug reference is listed, but no exploit mechanics are provided in the bundle.
Likely exposure
Exposure is most likely on endpoints running Google Chrome older than 92.0.4515.107, especially unmanaged desktops and laptops. Fedora package advisory links indicate downstream Linux package updates also matter where those packages are deployed.
Exploitation context
The source bundle supports remote attack potential through crafted HTML. It does not support claims of active exploitation, public exploit availability, or inclusion in CISA KEV. Treat exploitation status as not evidenced by the provided sources.
Researcher notes
The public record is sparse: no CVSS, CWE, or detailed bug analysis is included. The key grounded facts are use-after-free, Chrome UI framework, fixed before 92.0.4515.107, and potential heap corruption via crafted HTML.
Mitigation direction
- Update Google Chrome to 92.0.4515.107 or later.
- Apply relevant Fedora package updates where those advisories apply.
- Ensure browsers fully restart after update deployment.
- Review vendor guidance for managed Chrome or downstream package variants.
Validation and detection
- Inventory Chrome versions across managed endpoints.
- Confirm deployed Chrome versions are 92.0.4515.107 or later.
- Check Linux package status against the linked Fedora advisories.
- Verify browser auto-update and restart compliance reporting.
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-2021-30579 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/1207277CVE 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.