Page generated: 11 Nov 2026, 10:18 UTC
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CVE-2023-42916

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been exploit…

Read full description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.
CVSS 6.5 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.1/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 6.5: +0.97
  • Fresh EPSS: 17.82%: +0.09

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

Sources: 13 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

The Hacker News
Press · 07 Feb 2024, 08:00 · Global Coalition and Tech Giants Unite Against Commercial Spyware Abuse - The Hacker News
Help Net Security
Press · 23 Jan 2024, 08:00 · Apple fixes actively exploited WebKit zero-day (CVE-2024-23222) - Help Net Security
SecurityWeek
Press · 22 Jan 2024, 08:00 · Apple Ships iOS 17.3, Warns of WebKit Zero-Day Exploitation - SecurityWeek
Bitdefender
Press · 12 Dec 2023, 08:00 · Apple Issues iOS 16.7.3 to Patch Critical Security Flaws for Old-Gen iPhones - Bitdefender
Bitdefender
Press · 04 Dec 2023, 08:00 · Apple Plugs Two More Security Holes Likely Exploited by Spyware Actors - Bitdefender
See all 13 source documents
Lookout
Press · 04 Dec 2023, 08:00 · iOS 17.1.1 vulnerabilities | Threat Intel - Lookout
Help Net Security
Press · 01 Dec 2023, 08:00 · Apple patches two zero-days used to target iOS users (CVE-2023-42916 CVE-2023-42917) - Help Net Security
Livemint
Press · 01 Dec 2023, 08:00 · Apple releases iOS update 17.1.2, users face THESE challenges: All details - Livemint
Macworld
Press · 01 Dec 2023, 08:00 · Apple warns billions of users of actively exploited zero-day vulnerability - Macworld
Lifehacker
Press · 30 Nov 2023, 08:00 · You Need to Update Your Apple Devices Now - Lifehacker
BleepingComputer
Press · 30 Nov 2023, 08:00 · Apple fixes two new iOS zero-days in emergency updates - BleepingComputer
Ars Technica
Press · 30 Nov 2023, 08:00 · Google researchers report critical 0-days in Chrome and all Apple OSes - Ars Technica
Macworld
Press · 30 Nov 2023, 08:00 · Apple releases macOS Sonoma 14.1.2 to fix exploited zero-day WebKit flaws - Macworld

Score evolution

● Hype   ● Reality

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

First record: hype 0.0 · reality 8.1 (2026-11-02 15:13). The curve appears once the score changes.

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.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 6.5; EPSS 17.8%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:58.231410+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
30 Nov 2023, 08:00
Published
30 Nov 2023, 22:18
Added to the CISA KEV catalog
04 Dec 2023, 00:00
Latest press mention
07 Feb 2024, 08:00
Score calculated
05 Nov 2026, 13:58