Security readout for executives and security teams
Plain-English summary
CVE-2021-30567 is a Chrome DevTools memory-safety bug. A successful attack required convincing a user to open DevTools and perform a specific gesture, which limits broad drive-by risk. Google fixed it in Chrome 92.0.4515.107.
Executive priority
Treat as a routine but important browser patching item. The technical impact could be serious, but exploitation appears interaction-dependent and no active exploitation is cited in the supplied sources.
Technical view
The issue is described as a use-after-free in Chrome DevTools before 92.0.4515.107, potentially leading to heap corruption after a user gesture. The bundle provides no CVSS score, CWE mapping, public exploit details, or evidence of active exploitation.
Likely exposure
Exposure is most relevant to endpoints running Google Chrome before 92.0.4515.107. Developer, IT, and security workstations may be more exposed because users are more likely to open DevTools. Fedora Chromium package advisories are referenced, but this bundle does not provide downstream version details.
Exploitation context
The known attack condition requires user interaction: the attacker must convince the user to open DevTools and perform a specific gesture. CISA KEV status is false, and the provided sources do not state active exploitation.
Researcher notes
The public description is sparse. The Chromium bug link is referenced, but the bundle does not include technical details. Avoid assuming exploitability beyond DevTools use-after-free, heap corruption potential, and the stated user-gesture requirement.
Mitigation direction
- Update Google Chrome to 92.0.4515.107 or later.
- Apply relevant Fedora Chromium package updates where applicable.
- Check vendor guidance for any platform-specific remediation details.
- Prioritize developer and administrator workstations for browser update verification.
Validation and detection
- Inventory Chrome versions and flag installations below 92.0.4515.107.
- Confirm managed browser update policies are applying successfully.
- Review Fedora systems for applicable Chromium package advisory updates.
- Verify no exception group remains pinned to vulnerable Chrome builds.
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-2021-30567 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/1211326CVE 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.