CVE-2026-20657

| EUVD-2026-15047 MEDIUM
2026-03-25 apple GHSA-qm38-v5q7-v23r
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
EUVD ID Assigned
Mar 25, 2026 - 01:00 euvd
EUVD-2026-15047
Analysis Generated
Mar 25, 2026 - 01:00 vuln.today
CVE Published
Mar 25, 2026 - 00:31 nvd
MEDIUM 6.5

Tags

Apple Buffer Overflow macOS iOS

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

Analysis

Improper memory handling in Apple iOS, iPadOS, and macOS allows remote denial of service when processing maliciously crafted files, potentially causing unexpected application crashes. An attacker can trigger this vulnerability by delivering a specially crafted file to a victim, resulting in app termination without requiring user privileges or interaction beyond opening the file. …

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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

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CVE-2026-20657 vulnerability details – vuln.today
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