Page generated: 06 Nov 2026, 03:50 UTC
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CVE-2026-86974

A type confusion issue was addressed with improved checks. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. Processing maliciously crafted web content may lead to memory corruption.

CVSS 7.5 (HIGH)

Attention and evidence

HYPE SCORE
0.6/10
REALITY · THREAT PRIORITY
2.6/10
General review priority; not probability

Evidence confidence: Insufficient evidence

Why this priority?
  • Technical severity: CVSS 7.5: +2.62
  • Fresh EPSS: 0.53%: +0.01

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 2 documents and public datasets.

Hype components

Headline sample (25%)
10/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL6/100

Sources and documents

ZDI: Published Advisories
Technical advisory · 28 Oct 2026, 05:00 · ZDI-26-830: Apple Safari jsToWasm IC Entrypoint Type Confusion Remote Code Execution Vulnerability
ZDI: Published Advisories
Press · 28 Oct 2026, 05:00 · ZDI-26-830: Apple Safari jsToWasm IC Entrypoint Type Confusion Remote Code Execution Vulnerability

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

0.00.30.60.91.21.502 Nov 2026 · BELOW THRESHOLDSHype 0.6Reality 0.004 Nov 2026 · BELOW THRESHOLDSHype 0.6Reality 2.6Nov 2Nov 4

━ Hype Score (Perceived)  ━ Reality threat priority. Definition changes are not new attacks.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs. Published 10 days ago. Exploitation evidence usually takes weeks to show up: a low reality score can mean there is no data yet, not that the flaw is mild.

Evidence in context

Confidence in exploitation evidence
Insufficient evidence
Priority basis
Exploitation in attacks unconfirmed; CVSS 7.5; EPSS 0.5%
Attention, last 30 days
1 distinct story titles; 1 press documents; 1 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
No exploitation observation is recorded.
Known scale
Not quantified.
Evidence confidence basis
Insufficient evidence

Score evaluated: 2026-11-05 14:00:29.412792+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
26 Oct 2026, 20:40
First press mention
28 Oct 2026, 05:00
Latest press mention
28 Oct 2026, 05:00
Score calculated
05 Nov 2026, 14:00