"Clear History and Website Data" did not clear the history. The issue was addressed with improved data deletion. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. A user may be unable to fully delete browsing history.
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityLow
AvailabilityNone
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 0.4 → 1.1 |
| 2026-07-21 | nvd | AV: P→L, AC: H→L, PR: H→L, UI: A→N, VI: N→L | 0.0 → 0.4 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.0 |
Affected Software
| Vendor | Product | Version |
|---|
| Apple | iOS and iPadOS | < 14.3 |
| apple | ipados | < 14.3 |
| apple | iphone_os | < 14.3 |
| apple | mac_os_x | ≥ 10.14, < 10.14.6 |
| apple | mac_os_x | ≥ 10.15, < 10.15.7 |
| apple | mac_os_x | 10.14.6 |
| apple | mac_os_x | 10.15.7 |
| apple | macos | ≥ 11.0, < 11.1.0 |
| Apple | macOS | < 11.1 |
| Apple | tvOS | < 14.3 |
| apple | tvos | < 14.3 |
| fedoraproject | fedora | 32 |
| fedoraproject | fedora | 33 |
| webkitgtk | webkitgtk | < 2.30.6 |
Published: 2021-04-02
