Security readout for executives and security teams
Plain-English summary
CVE-2021-30510 is a Chrome browser memory-safety flaw in Aura. A remote attacker could potentially trigger heap corruption by getting a user to open a crafted HTML page. The source bundle identifies affected Chrome versions as prior to 90.0.4430.212, but provides no CVSS score.
Executive priority
Treat this as a priority endpoint patching item, especially for users exposed to untrusted web content. There is no cited active exploitation, but browser memory corruption flaws can create meaningful business risk when patching lags.
Technical view
The CVE describes a use-after-free condition in Chrome Aura before 90.0.4430.212. The documented attack vector is a crafted HTML page causing potential heap corruption. Public details in the bundle are limited; no CWE, CVSS vector, or deeper bug context is provided.
Likely exposure
Exposure is likely where endpoints run Google Chrome versions earlier than 90.0.4430.212. Linux distributions that packaged Chromium/Chrome updates may also be relevant, as Gentoo and Fedora advisories are cited.
Exploitation context
The bundle does not cite active exploitation, and KEV status is false. The described path is remote delivery through a crafted HTML page, which fits normal browser exposure but does not prove exploitation in the wild.
Researcher notes
Do not assume exploitability beyond the CVE description. Useful validation is version-based: Chrome before 90.0.4430.212 is the stated affected range. The crbug reference is listed, but the bundle does not provide technical contents from it.
Mitigation direction
- Update Google Chrome to 90.0.4430.212 or later where applicable.
- Review Gentoo and Fedora advisories for distribution-specific package updates.
- Prioritize managed browser patch compliance on user workstations.
- Check vendor guidance if embedded Chromium-based products are in scope.
Validation and detection
- Inventory Chrome versions across endpoints and compare against 90.0.4430.212.
- Confirm patched package versions on Gentoo and Fedora systems.
- Verify browser update policies are enforcing current stable releases.
- Check vulnerability scanner findings for CVE-2021-30510 and validate version evidence.
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-2021-30510 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/2021/05/stable-channel-update-for-desktop.htmlCVE reference · x_refsource_MISC
- https://crbug.com/1197436CVE reference · x_refsource_MISC
- GLSA-202107-06CVE reference · vendor-advisory, x_refsource_GENTOO
- FEDORA-2021-f94dadff78CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-ca58c57bdfCVE 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.