Apple Safari/macOS/visionOS/iOS/iPadOS up to 26.2 denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apple Safari, macOS, visionOS, iOS and iPadOS up to 26.2. This impacts an unknown function. This manipulation causes denial of service. This vulnerability appears as CVE-2026-20652. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Apple Safari, macOS, visionOS, iOS and iPadOS up to 26.2. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A remote attacker may be able to cause a denial-of-service.

The advisory is shared at support.apple.com. This vulnerability is known as CVE-2026-20652 since 11/11/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/01/2026). MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 303253 (Debian dsa-6172 : gir1.2-javascriptcoregtk-4.0 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 26.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (303253) and CERT Bund (WID-SEC-2026-1201). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • IBM Tivoli Monitoring
  • Amazon Linux 2
  • Open Source OpenJDK
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • IBM WebSphere Application Server
  • SUSE Linux
  • IBM Tivoli Netcool/OMNIbus
  • Oracle Linux
  • IBM Rational Software Architect
  • IBM TXSeries
  • IBM InfoSphere Information Server
  • IBM Content Manager
  • SUSE openSUSE
  • RESF Rocky Linux
  • NetApp ActiveIQ Unified Manager
  • Azul Zulu
  • IBM Semeru Runtime
  • Open Source Camunda
  • IBM App Connect Enterprise
  • Oracle Java SE
  • Oracle GraalVM
  • IBM Java
  • IBM Business Automation Workflow
  • RealObjects PDFreactor
  • IBM Rational Application Developer for WebSphere Software
  • IBM WebSphere Service Registry and Repository
  • IBM Tivoli Network Manager

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 303253
Nessus Name: Debian dsa-6172 : gir1.2-javascriptcoregtk-4.0 - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Safari/macOS/visionOS/iOS/iPadOS 26.3

Timelineinfo

11/11/2025 CVE reserved
02/12/2026 +93 days Advisory disclosed
02/12/2026 +0 days VulDB entry created
07/01/2026 +139 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-20652 (🔒)
GCVE (CVE): GCVE-0-2026-20652
GCVE (VulDB): GCVE-100-345673
CERT Bund: WID-SEC-2026-1201 - Oracle Java SE: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 02/12/2026 06:26
Updated: 07/01/2026 02:51
Changes: 02/12/2026 06:26 (56), 02/13/2026 05:06 (11), 02/13/2026 16:03 (11), 03/22/2026 18:37 (2), 04/24/2026 22:34 (7), 05/03/2026 23:38 (1), 05/13/2026 02:53 (1), 05/24/2026 09:25 (1), 06/12/2026 13:00 (1), 07/01/2026 02:51 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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