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TI-2021-01513 Aliases CVE-2021-1801GHSA-99vx-wqpw-hqrq

Apple iOS and iPadOS: Maliciously crafted web content may violate iframe sandboxing policy

Priority LOW 32Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 3 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy.

Why it matters now

EPSS 0.01515 74th percentileScored 2026-11-07
Fix Partial iOS and iPadOS (Apple): 14.4macOS (Apple): 11.2, 7.3, 14.4Red Hat: 2 advisoriesRed Hat: 3 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOS and iPadOSbefore 14.414.4Patch availableCNA
ApplemacOSbefore 11.211.2Patch availableCNA
ApplemacOSbefore 7.37.3Patch availableCNA
ApplemacOSbefore 14.414.4Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 14.4 Fixed in 14.4 Patch available CNA
  • macOS VendorApple Affected before 11.2 Fixed in 11.2 Patch available CNA
  • macOS VendorApple Affected before 7.3 Fixed in 7.3 Patch available CNA
  • macOS VendorApple Affected before 14.4 Fixed in 14.4 Patch available CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:*before 14.4VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 14.4VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*11.0.1 to before 11.2VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 14.4VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 7.3VulnerableApple
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*before 2.30.6VulnerableWebKitGTK
  • cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* Versions before 14.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 14.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0.1 to before 11.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 14.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 7.3 Vulnerable ·Apple
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* Versions before 2.30.6 Vulnerable ·WebKitGTK

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 14.4
  • Fix · CNA macOS (Apple) Fixed in 11.2
  • Fix · CNA macOS (Apple) Fixed in 7.3
  • Fix · CNA macOS (Apple) Fixed in 14.4

Red Hat 2 advisories

  • RHSA-2025:10364 Released 2025-07-07 · Red Hat rating Important
    webkitgtk4 security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4-2.48.3-2.el7_9, webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-jsc-2.48.3-2.el7_9 +1
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-doc-2.48.3-2.el7_9, webkitgtk4-jsc-devel-2.48.3-2.el7_9
  • RHSA-2021:4381 Released 2021-11-09 · Red Hat rating Moderate
    GNOME security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) LibRaw-devel-0.19.5-3.el8
    • Red Hat Enterprise Linux AppStream (v. 8) LibRaw-0.19.5-3.el8, gnome-autoar-0.2.3-2.el8, webkit2gtk3-2.32.3-2.el8 +3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple macOS 11.2

    60 records Highest priority Priority CRITICAL 3 CRITICAL, 3 MEDIUM, 54 LOW

    Other records, highest priority first

    • TI-2021-01572 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code executionPriority CRITICAL 100
    • TI-2021-01502 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
    • TI-2021-01495 Apple iOS and iPadOS: A malicious application may be able to elevate privilegesPriority CRITICAL 90
    Show all 60 records →
  • Release ·

    Apple iOS and iPadOS 14.4

    49 records Highest priority Priority CRITICAL 3 CRITICAL, 1 HIGH, 6 MEDIUM, 39 LOW

    Other records, highest priority first

    • TI-2021-01572 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code executionPriority CRITICAL 100
    • TI-2021-01502 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
    • TI-2021-01495 Apple iOS and iPadOS: A malicious application may be able to elevate privilegesPriority CRITICAL 90
    Show all 49 records →
Show 2 more groups
  • Release ·

    Apple macOS 14.4

    35 records Highest priority Priority CRITICAL 2 CRITICAL, 2 MEDIUM, 31 LOW

    Other records, highest priority first

    • TI-2021-01502 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
    • TI-2021-01495 Apple iOS and iPadOS: A malicious application may be able to elevate privilegesPriority CRITICAL 90
    • TI-2021-01529 Apple iOS and iPadOS: A remote attacker may be able to cause unexpected application…Priority MEDIUM 47
    Show all 35 records →
  • Release ·

    Apple macOS 7.3

    34 records Highest priority Priority CRITICAL 2 CRITICAL, 2 MEDIUM, 30 LOW

    Other records, highest priority first

    • TI-2021-01502 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
    • TI-2021-01495 Apple iOS and iPadOS: A malicious application may be able to elevate privilegesPriority CRITICAL 90
    • TI-2021-01529 Apple iOS and iPadOS: A remote attacker may be able to cause unexpected application…Priority MEDIUM 47
    Show all 34 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:4381
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:10364
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:10364
Not affected: 4 products
  • Red Hat CodeReady Linux Builder (v. 8)
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux BaseOS (v. 8)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1801
  2. 2026-10-03 Alias added: GHSA-99vx-wqpw-hqrq

References

Advisory 7

  • TI-2022-06888 Use after free in Apple Safari CVSS 3.1HIGH 8.8
  • TI-2022-06876 Out-of-bounds write in Apple Safari CVSS 3.1HIGH 8.8
  • TI-2024-15360 Incorrect authorization in Apple iOS and iPadOS CVSS 3.1CRITICAL 9.1
  • TI-2021-01529 Apple iOS and iPadOS: A remote attacker may be able to cause unexpected application… CVSS 3.1CRITICAL 9.8
  • TI-2021-01509 Out-of-bounds write in Apple iOS and iPadOS CVSS 3.1CRITICAL 9.8
  • TI-2021-01508 Out-of-bounds write in Apple iOS and iPadOS CVSS 3.1CRITICAL 9.8
See all 88 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences