Cyber alerts

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August 2026

Published Monday 24 August 2026 (03:30) (updated 24 August 2026)

Exploitation of Critical Authentication Bypass Vulnerability in macOS Screen Sharing

CVE-2026-65400 could allow unauthenticated network attackers to access macOS Screen Sharing services

Published Wednesday 19 August 2026 (02:20) (updated 10 September 2026)

Active Exploitation of Citrix NetScaler ADC and NetScaler Gateway Vulnerability (CVE-2026-19490)

CVE-2026-19490 could allow a remote unauthenticated attacker to bypass authentication

Published Wednesday 19 August 2026 (01:22) (updated 19 August 2026)

Oracle Releases August 2026 Critical Patch Update Advisory

Scheduled advisory includes 943 security updates across multiple Oracle product families

Published Friday 14 August 2026 (01:06) (updated 17 August 2026)

Active Exploitation of Citrix NetScaler ADC and NetScaler Gateway Vulnerability (CVE-2026-8452)

Security researchers have demonstrated that CVE-2026-8452 could lead to remote code execution (RCE)

Published Wednesday 12 August 2026 (02:07) (updated 12 August 2026)

Cisco Releases Security Updates for Secure Firewall ASA and Secure Firewall FTD Software

CVE-2026-20349 could allow unauthenticated remote attackers to trigger a denial-of-service condition on affected devices.

Published Wednesday 12 August 2026 (12:55) (updated 12 August 2026)

Microsoft Releases Aug 2026 Security Updates

Scheduled updates for Microsoft products address 421 Microsoft vulnerabilities, including 3 zero-day vulnerabilities

Published Wednesday 12 August 2026 (12:26) (updated 12 August 2026)

Critical Vulnerabilities in Microsoft SharePoint Server

When chained together, CVE-2026-55040 and CVE-2026-63520 could lead to unauthenticated remote code execution against a vulnerable SharePoint server

Published Tuesday 11 August 2026 (04:01) (updated 11 August 2026)

Docker Releases Security Updates for Docker Copy Functionality

CVE-2026-17106 could allow arbitrary file overwrite and potential code execution on systems running Docker commands.

Published Friday 7 August 2026 (03:53) (updated 7 August 2026)

WordPress Releases Security Updates to Address "XSS2Shell" Vulnerability Chain

Successful exploitation of CVE-2026-64638 could potentially lead to PHP code execution

Published Friday 7 August 2026 (12:39) (updated 7 August 2026)

JetBrains Releases Security Advisory for Critical Vulnerability CVE-2026-63077

Exploitation of CVE-2026-63077 could allow unauthenticated remote code execution on vulnerable TeamCity On-Premises servers

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