Threats / Apple / CVE-2023-43000
CVE-2023-43000
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Apple Multiple Products vulnerability
Apple macOS, iOS, iPadOS, and Safari 16.6 contain a use-after-free vulnerability in web content processing that may cause memory corruption and has been exploited in the wild.
Verdict
Today item — known-exploited.
A use-after-free flaw in Apple's web rendering stack allows attackers to corrupt memory through malicious web content. Active exploitation in the wild indicates immediate risk to users of affected platforms.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
2 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-03-05).
Probability (EPSS)
EPSS 0.03817 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Apple, Multiple Products. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-416 Use After Free — weakness family: Memory safety.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft malicious web content that triggers unsafe memory access in the rendering engine.
Business
Users visiting compromised or attacker-controlled websites face immediate code execution risk.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit memory corruption to achieve arbitrary code execution within the browser or system context.
Business
Attackers gain ability to steal data, install malware, or pivot to other systems on the network.
3
Lateral reach — past segmentation narrative 3
Attacker
I distribute the exploit through watering-hole attacks or malicious advertisements on legitimate sites.
Business
Large user populations across macOS, iOS, and iPadOS devices become vulnerable without user interaction beyond normal browsing.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05