October 18, 2026

CVE Watchtower

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CVE-2026-20700NVD

Vulnerability Summary

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.
Severity Level
HIGH(7.8)
Published Date
Feb 11, 2026
Last Modified
Mar 25, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
0.39%Probability
Root Weakness (CWE)
CWE-119: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 7.8 (HIGH)
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Apple Ipados < 26.3
  • Apple Iphone Os < 26.3
  • Apple Macos < 26.3
  • Apple Tvos < 26.3
  • Apple Visionos < 26.3
  • Apple Watchos < 26.3
Patched Versions
  • Apple Ipados 26.3
  • Apple Iphone Os 26.3
  • Apple Macos 26.3
  • Apple Tvos 26.3
  • Apple Visionos 26.3
  • Apple Watchos 26.3
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🚫Ad-Free — Uninterrupted experience.
🎁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.

External References