Security readout for executives and security teams
Plain-English summary
Chrome on iOS before 92.0.4515.107 had an image-handling policy flaw that could let a remote attacker leak cross-origin data through a crafted HTML page. The sources do not provide CVSS, CWE, or confirmed real-world exploitation.
Executive priority
Handle as a targeted browser data-leak risk, not a confirmed emergency. Prioritize patch verification for mobile users, especially where Chrome on iOS accesses business web applications or sensitive cross-origin content.
Technical view
The CVE describes insufficient policy enforcement in iOS image handling for Google Chrome on iOS before 92.0.4515.107. Impact is cross-origin data leakage from crafted HTML content. Public detail is limited, and the referenced bug is not summarized in the bundle.
Likely exposure
Exposure is most likely limited to users or managed mobile fleets running Google Chrome on iOS earlier than 92.0.4515.107. The bundle does not prove exposure for other Chrome platforms, despite Fedora package advisories being referenced.
Exploitation context
The CVE allows remote triggering via crafted HTML, but the source bundle marks CISA KEV as false and provides no cited evidence of active exploitation or public exploit availability.
Researcher notes
Public technical detail is sparse. The key validated facts are affected platform, fixed-version threshold, remote crafted-HTML trigger, and cross-origin data leakage impact. Do not assume broader platform impact without additional vendor evidence.
Mitigation direction
- Upgrade Chrome on iOS to 92.0.4515.107 or later.
- Check current Google Chrome vendor guidance for any additional remediation.
- Use mobile device management inventory to identify outdated Chrome on iOS installations.
- Treat Fedora advisories as package-maintenance references unless your environment uses those packages.
Validation and detection
- Confirm Chrome on iOS versions across managed devices.
- Verify no devices remain below 92.0.4515.107.
- Review browser update compliance reporting for unmanaged or BYOD users.
- Check vendor release notes before closing the remediation ticket.
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-2021-30583 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/1179290CVE 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.