CVE-2026-20636

MEDIUM
2026-02-11 [email protected]
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Patch Released
Apr 09, 2026 - 14:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 11, 2026 - 23:16 nvd
MEDIUM 6.5

Tags

Apple Buffer Overflow Redhat Suse

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.

Analysis

Denial of service in Apple Safari, iOS, iPadOS, and macOS results from improper memory handling when processing maliciously crafted web content, causing unexpected process crashes. An unauthenticated remote attacker can trigger this vulnerability through a specially crafted webpage, affecting users who view the malicious content. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

Vendor Status

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CVE-2026-20636 vulnerability details – vuln.today
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