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Threats / Apple / CVE-2019-8506
CVE-2019-8506 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-22

Apple Multiple Products vulnerability

A type confusion vulnerability in multiple Apple products allows arbitrary code execution through maliciously crafted web content.

Verdict

Today item — known-exploited.

This type confusion issue enables remote code execution via web-based attack vectors. The vulnerability has been exploited in the wild, indicating active threat activity against Apple product users.

CISA KEV Yes · 2022-05-043EPSS 0.18172 (verify live)4
01

Is it exploitable?

— the evidence, ranked above the score
Reported 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 2022-05-04).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.18172 — 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.
NVD ↗Reported
Weakness (CWE)
Mapped to CWE-843 Type Confusion — weakness family: Memory safety.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
NVD ↗Reported
WeaknessCWE-843 · Type ConfusionMemory safety
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution 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 board
1

Front door — unauthenticated access narrative 1

Attacker
I craft malicious web content that exploits type confusion in the target application's memory handling.
Business
Users face direct risk of compromise when visiting untrusted or compromised websites.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
I trigger the type confusion by processing my malicious content, causing the application to misinterpret object types.
Business
Apple's web-facing products become vectors for unauthorized access to user systems and data.
3

Lateral reach — past segmentation narrative 3

Attacker
I achieve arbitrary code execution within the application's security context.
Business
Attackers gain ability to steal credentials, install malware, or pivot to other systems on the network.
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

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • 2 reported-exploitation source(s)
  • CWE weakness mapping (NVD)
  • Catalogued by apple (CNA)
  • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
  • Disclosure & credit2
    Catalogued by appleCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.