CVE-2026-20643
Description
Referenced in article: Apple pushes first Background Security Improvements update to fix WebKit flaw
EPSS — Exploit Probability
Higher than 9.8% of all CVEs
Related Articles (4)
Apple pushes first Background Security Improvements update to fix WebKit flaw
Apple has released its first Background Security Improvements update to fix a WebKit flaw tracked as CVE-2026-20643 on iPhones, iPads, and Macs without requiring a full operating system upgrade.
Mar 18, 2026
Apple Fixes WebKit Vulnerability Enabling Same-Origin Policy Bypass on iOS and macOS
Apple fixes WebKit CVE-2026-20643 in iOS 26.3.1, macOS 26.3.2 using background patches, reducing exploit risk.
Mar 18, 2026
Apple Debuts Background Security Improvements With Fresh WebKit Patches
The lightweight updates are meant to deliver security protections between security updates.
Mar 18, 2026
⚡ Weekly Recap: CI/CD Backdoor, FBI Buys Location Data, WhatsApp Ditches Numbers & More
Trivy backdoored, FBI buys location data, iOS DarkSword kit, WhatsApp usernames, Langflow RCE, Cisco FMC zero-day & critical CVEs to patch.
Mar 23, 2026
Risk Assessment
STANDARDNo elevated risk factors detected.
Details
- Severity
- Info
- EPSS
- 0.0%
- CISA KEV
- No
- Articles
- 4
Timeline
Published
Mar 28, 2026