Security readout for executives and security teams
CVE-2021-30951 is a memory safety flaw in web content processing. A malicious web page could trigger arbitrary code execution on affected Apple platforms and related WebKit packages. The source bundle names fixed Apple releases and later Linux distribution advisories, but provides no CVSS score or confirmed exploitation. Exposure is most likely on devices or systems running Apple OS or Safari versions older than the named fixed releases, or Linux WebKitGTK/WPE packages predating the Debian and Fedora advisories. Browser and embedded web-view use increases practical exposure because malicious web content is the stated trigger. Treat this as high priority for endpoint and browser patch management, especially for fleets with older Apple devices or Linux desktop applications using WebKit. No active exploitation is shown in the supplied sources, but the impact is arbitrary code execution through malicious web content. Mitigation focus: Update Apple devices to the fixed releases or later versions named in Apple advisories.; Apply Debian and Fedora WebKitGTK/WPE security updates where those packages are deployed.; Identify applications using WebKit-based embedded web views and confirm underlying package versions..
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
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-30951 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://support.apple.com/en-us/HT212975CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212976CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212978CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212980CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212982CVE reference · x_refsource_MISC
- FEDORA-2022-25a98f5d55CVE reference · vendor-advisory, x_refsource_FEDORA
- DSA-5061CVE reference · vendor-advisory, x_refsource_DEBIAN
- DSA-5060CVE reference · vendor-advisory, x_refsource_DEBIAN
- FEDORA-2022-f7366e60cbCVE 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.