high Known exploitedREV. 01

CVE-2023-41993Apple WebKit — web content that runs code

Processing web content executes the attacker's code on an Apple device. Apple closed it with stricter checks and reports attacks against builds released before iOS 16.7; macOS Sonoma 14 carries the fix.

YOUR NEXT MOVE

Update to macOS Sonoma 14, or the release carrying this fix for your platform, and start with devices that are behind — older builds are what was attacked.

Read the risk

THE VITAL STATS
CVSS score
8.8/ 10
CVSS v3.1
EPSS probability
24%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2023-09-21
Added to KEV
2023-09-25
Exploit published
Not recorded
Confidence
medium
Kill chain
execution
MITRE ATT&CK
T1203
Severity
high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attacker needsThe user must open attacker-controlled web content.

Fixed inmacOS Sonoma 14

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2023-41993 · CRDS 0.1 · Issued 2026-09-24