Update your Mac: Screen Sharing vulnerability exploited in the wild


The Dutch National Cyber Security Centre (NCSC) issued a warning after being notified of several incidents where a vulnerability in Apple’s Screen Sharing feature was exploited to install Monero cryptominers.

The vulnerability, tracked as CVE-2026-65400, was patched by Apple on August 6. It is an authentication-bypass flaw in macOS Screen Sharing that can let an attacker on the network connect without valid credentials.

macOS’s built-in Screen Sharing service is a remote-control feature commonly associated with port 5900. Successful exploitation can allow a remote attacker on a reachable network to authenticate to the service without legitimate credentials.

Read more…
Source:  Malwarebytes Labs


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Mercedes-Benz Head Unit security research report

    January 17, 2025

    This report covers the research of the Mercedes-Benz Head Unit, which was made by Kaspersky team. Mercedes-Benz’s latest Head Unit (infotainment system) is called Mercedes-Benz User Experience (MBUX). The researchers performed analysis of the first generation MBUX. MBUX was previously analysed by KeenLab. Their report is a good starting point for diving deep into the MBUX ...

  • Threat Brief: CVE-2025-0282 and CVE-2025-0283

    January 16, 2025

    On Jan. 8, 2025, Ivanti released a security advisory for two vulnerabilities (CVE-2025-0282 and CVE-2025-0283) in its Connect Secure, Policy Secure and ZTA gateway products. This threat brief provides attack details that we observed in a recent incident response engagement to provide actionable intelligence to the community. These details can be used to further detect current ...

  • Clop ransomware gang names dozens of victims hit by Cleo mass-hack, but several firms dispute breaches

    January 16, 2025

    The prolific Clop ransomware gang has named dozens of corporate victims it claims to have hacked in recent weeks after exploiting a vulnerability ​​in several popular enterprise file transfer products developed by U.S. software company Cleo. In a post on its dark web leak site, seen by TechCrunch, the Russia-linked Clop gang listed 59 organizations it ...

  • Hackers are exploiting a new Fortinet firewall bug to breach company networks

    January 14, 2025

    Security researchers say malicious hackers have been exploiting a newly discovered vulnerability in Fortinet firewalls to break into corporate and enterprise networks. In an advisory published Tuesday, security product maker Fortinet confirmed that a critical-rated vulnerability in its FortiGate firewalls, tracked as CVE-2024-55591, is “being exploited in the wild.” Fortinet made patches available, but security researchers ...

  • Patch Tuesday – January 2025

    January 14, 2025

    Microsoft is addressing 161 vulnerabilities this January 2025 Patch Tuesday. Microsoft has evidence of in-the-wild exploitation and/or public disclosure for eight of the vulnerabilities published today, with three listed on CISA KEV. This is now the fourth consecutive month where Microsoft has published zero-day vulnerabilities on Patch Tuesday without evaluating any of them as critical severity ...

  • Analyzing CVE-2024-44243, a macOS System Integrity Protection bypass through kernel extensions

    January 13, 2025

    Microsoft Threat Intelligence discovered a new macOS vulnerability that could allow attackers to bypass Apple’s System Integrity Protection (SIP) in macOS by loading third party kernel extensions. SIP is a security technology that restricts the performance of operations that may compromise system integrity; thus, a SIP bypass affects the overall security of the operating system. Bypassing ...