SecPod

Learn Search

Search across all Learn content

← Back to Security Research
Apple Releases Critical Updates to Patch 3 Zero-Day Vulnerabilities Under Active Attack

Apple Releases Critical Updates to Patch 3 Zero-Day Vulnerabilities Under Active Attack

Apple has swiftly issued crucial security updates in response to the exploitation of three fresh Zero-Day Vulnerabilities. The vulnerabilities are being used in targeted attacks against iPhone and Mac users. This brings the total count of Zero-Day Vulnerabilities resolved by Apple this year to 16.

Sep 21, 2023By Gourav Shrivastava2 min read

Apple has swiftly issued crucial security updates in response to the exploitation of three fresh Zero-Day Vulnerabilities. The vulnerabilities are being used in targeted attacks against iPhone and Mac users. This brings the total count of Zero-Day Vulnerabilities resolved by Apple this year to 16.

They are identified as CVE-2023-41993 within the WebKit browser engine and CVE-2023-41991 within the Security framework. These issues allow malicious actors to avoid signature validation through nefarious applications or achieve random code execution by manipulating maliciously crafted webpages.

The third vulnerability, identified within the Kernel Framework, serves as the backbone for kernel extensions and kernel-resident device drivers. This flaw, denoted as CVE-2023-41992, presents a potential security risk that local attackers can exploit to escalate their privileges.

Apple addressed these three Zero-Day Vulnerabilities in multiple operating systems; following are the products affected:

CVE-2023-41991-> MacOS Ventura prior to 13.6

CVE-2023-41993 – Safari prior to 16.6.1

CVE-2023-41992 – MacOS Ventura prior to 13.6 and MacOS Monterey prior to 12.7

These critical security fixes primarily focused on resolving a certificate validation problem and implementing enhanced security checks.

The Zero-Day Vulnerabilities were initially discovered and reported by Bill Marczak from Citizen Lab at the University of Toronto’s Munk School and Maddie Stone from Google’s Threat Analysis Group.

Apple has not disclosed how these vulnerabilities were used in real-world attacks.

SanerNow VM and SanerNow PM detect and automatically fix these vulnerabilities by applying security updates. Use SanerNow and keep your systems updated and secure.

Featured Posts

Open Cisco FMC Zero-Day Under Active Attack: UAT-12197, UAT-11823 and Qilin-Linked UAT-11988 Exploit Firewall Flaws

Cisco FMC Zero-Day Under Active Attack: UAT-12197, UAT-11823 and Qilin-Linked UAT-11988 Exploit Firewall Flaws

CVE Research

Cisco FMC Zero-Day Under Active Attack: UAT-12197, UAT-11823 and Qilin-Linked UAT-11988 Exploit Firewall Flaws

Sep 11, 2026

Open CVE-2026-87491: Google Patches Seventh Actively Exploited Chrome Zero-Day of 2026
CVE-2026-87491: Google Fixes 7th Exploited Chrome Zero-Day of 2026

CVE Research

CVE-2026-87491: Google Patches Seventh Actively Exploited Chrome Zero-Day of 2026

Sep 10, 2026

Open Microsoft's September 2026 Patch Tuesday: 973 Vulnerabilities, Two Exploited Zero-Days and a Record Security Release
Microsoft's September 2026 Patch Tuesday: 973 Vulnerabilities, Two Exploited Zero-Days and a Record Security Release

CVE Research

Microsoft's September 2026 Patch Tuesday: 973 Vulnerabilities, Two Exploited Zero-Days and a Record Security Release

Microsoft's September 2026 Patch Tuesday addresses 973 vulnerabilities across Windows, Office, infrastructure services, virtualization components and other Microsoft products.

Sep 9, 2026

Open MikroTik RouterOS Under Attack: Critical SSH Vulnerabilities Enable Router Takeover
MikroTik RouterOS Under Attack: Critical SSH Vulnerabilities Enable Router Takeover

CVE Research

MikroTik RouterOS Under Attack: Critical SSH Vulnerabilities Enable Router Takeover

Sep 8, 2026