Security readout for executives and security teams
CVE-2021-30603 is a Chrome browser flaw in WebAudio. A malicious web page could potentially corrupt memory on vulnerable Chrome versions before 92.0.4515.159. The main business concern is unmanaged or frozen browser fleets; current auto-updated Chrome deployments should have limited exposure. Exposure is most likely on endpoints running Google Chrome or Chromium-derived packages older than 92.0.4515.159, including systems using older Fedora browser packages. Modern managed browsers with enforced automatic updates are less likely to remain exposed. Prioritize as a legacy browser hygiene issue with potentially serious impact. It is not supported as actively exploited here, but browser memory corruption reachable through web content warrants prompt remediation on any outdated endpoints. Mitigation focus: Upgrade Chrome to 92.0.4515.159 or later.; Apply relevant Fedora Chromium security updates where Fedora packages are used.; Enforce browser auto-update policies across managed endpoints..
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
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ATT&CK lookup starting points
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CVE-2021-30603 mapping review
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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/2021/08/stable-channel-update-for-desktop.htmlCVE reference · x_refsource_MISC
- https://crbug.com/1233564CVE 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.