Critical Alert 1 Active Exploit Detected Today

CVE-2026-86950 — Apple Multiple Products Out-of-Bounds Write Vulnerability →
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CVE-2020-27950NVD

Vulnerability Summary

A memory initialization issue was addressed. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. A malicious application may be able to disclose kernel memory.
Severity Level
UNKNOWN
Published Date
Dec 8, 2020
Last Modified
Oct 21, 2025
Exploitation Status
ACTIVE
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
N/A

Affected & Patched Versions

Affected Versions
  • Apple watchOS >= unspecified and < 7.1
  • Apple iOS and iPadOS >= unspecified and < 14.2
  • Apple macOS >= unspecified and < 11.0
  • Apple macOS >= unspecified and < 12.4
  • Apple macOS >= unspecified and < 6.2
  • Apple macOS >= unspecified and < 5.3
  • Apple macOS >= unspecified and < 2020
  • Apple macOS >= unspecified and < 10.15
Patched Versions
  • Apple watchOS 7.1
  • Apple iOS and iPadOS 14.2
  • Apple macOS 11.0
  • Apple macOS 12.4
  • Apple macOS 6.2
  • Apple macOS 5.3
  • Apple macOS 2020
  • Apple macOS 10.15
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.