Threats / Apple / CVE-2023-32435
CVE-2023-32435
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Apple Multiple Products vulnerability
Apple WebKit memory corruption vulnerability in iOS, iPadOS, macOS, and Safari enables remote code execution through malicious web content processing.
Verdict
Today item — known-exploited.
Out-of-bounds write flaw in WebKit HTML parsing allows unauthenticated attackers to achieve arbitrary code execution on affected Apple devices and third-party products using WebKit, with confirmed active exploitation.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
13 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 2023-06-23).
Probability (EPSS)
EPSS 0.23052 — 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-787 Out-of-bounds Write — 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
Craft malicious HTML or web content designed to trigger out-of-bounds memory write in WebKit parser
Business
User device compromised through routine web browsing without user interaction beyond visiting attacker-controlled or compromised site
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Deliver payload via web page, email link, or embedded content to trigger memory corruption during parsing
Business
Attacker gains code execution context with privileges of Safari or affected application process
3
Lateral reach — past segmentation narrative 3
Attacker
Execute arbitrary code post-exploitation to establish persistence or exfiltrate sensitive data
Business
Confidentiality and integrity of user data at risk across iOS, iPadOS, and macOS ecosystems
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