Threat Intelligence / CVE / CVE-2023-41993

CVE-2023-41993 — Apple Macos

CISA KEV

CVSS v3.1 8.8 (HIGH) · EPSS 24.4% (higher than 96.1% of all scored CVEs) · Priority 9/10 · Published 2023-09-21

As of 2025-11-05, CVE-2023-41993 is a HIGH-severity vulnerability in Apple Macos, CVSS v3.1 8.8, EPSS 24.4% (96.1th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-09-25), with a US federal remediation deadline of 2023-10-16. Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2023-41993, most recently “Hack-for-Hire Espionage Campaign Targeting MENA Civil Society via Predator/Intellexa Mercenary Spyware”.

Last updated: 2025-11-05

What is CVE-2023-41993?

The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.

The record classifies CVE-2023-41993 under weakness class CWE-754. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 19 affected-product entries are recorded, across 6 vendors, listed below. The identifier was first published 1088 days ago.

Severity and exploitation probability

CVSS v3.1 base score: 8.8 — HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (FIRST): 24.4% probability of exploitation in the next 30 days, higher than 96.1% of all scored CVEs
CISA KEV: Listed since 2023-09-25, federal remediation deadline 2023-10-16
Threadlinqs priority: 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
Published: 2023-09-21, last modified 2025-11-05

Is CVE-2023-41993 being exploited?

CISA added CVE-2023-41993 to the Known Exploited Vulnerabilities catalog on 2023-09-25, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2023-10-16 under BOD 22-01. It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

Affected products and versions

Apple: Ipados, Iphone Os, Macos
Fedoraproject: Fedora 37, Fedora 38, Fedora 39
Debian: Linux 11.0, Linux 12.0
Oracle: Graalvm 20.3.13, Graalvm 21.3.9, Jdk 1.8.0, Jre 1.8.0
Netapp: Active Iq Unified Manager, Cloud Insights Acquisition Unit, Cloud Insights Storage Workload Security Agent, Oncommand Insight, Oncommand Workflow Automation
Webkitgtk: Webkitgtk+

Showing 18 of 19 recorded product entries.

How to fix CVE-2023-41993

The record marks a vendor fix as available for CVE-2023-41993. Patch reference: https://support.apple.com/en-us/HT213926. Vendor advisory: https://support.apple.com/en-us/HT213940. Because CVE-2023-41993 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2023-10-16. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2023-41993

2 tracked threats in the Threadlinqs corpus reference CVE-2023-41993, either in the campaign’s CVE list or as an indicator on the campaign record.

Hack-for-Hire Espionage Campaign Targeting MENA Civil Society via Predator/Intellexa Mercenary Spyware — HIGH · 2026-04-08
Coruna iOS Exploit Kit — 23 Exploits Across 5 Chains Targeting iOS 13-17.2.1 (CVE-2021-30952, CVE-2023-41974, CVE-2023-43000 + 20 More) — CRITICAL · 2026-03-06

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2023-41993 are available via the Threadlinqs MCP server (Purple tier). View plans →

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