VulnRadar

Data against noise.

Page generated: 09 Nov 2026, 05:06 UTC

CVE-2016-4657

WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

CVSS 8.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.7/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 8.8: +1.32
Fresh EPSS: 66.79%: +0.33

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

Sources: 11 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

Bitsight

Press · 13 Jan 2023, 15:27 · 2023 Apple & iOS Vulnerabilities from CISA: Data - Bitsight

Techcircle

Press · 27 Oct 2021, 07:00 · CERT-In authorised to report vulnerabilities impacting products designed and manufactured in India - Techcircle

Rapid7

Press · 08 Jun 2018, 07:00 · Metasploit Wrapup 6/8/18 - Rapid7

The Register

Press · 15 Mar 2017, 07:00 · Borked browser baked into Nintendo Switch - The Register

Silicon UK

Press · 14 Mar 2017, 07:00 · Nintendo Switch Hacked Via Built-In WebKit Exploit - Silicon UK

See all 11 source documents

9to5Mac

Press · 13 Mar 2017, 07:00 · Nintendo's Switch is using an outdated version of WebKit leveraged in previous iOS jailbreak - 9to5Mac

Lookout

Press · 02 Nov 2016, 07:00 · Trident Vulnerabilities: All the Technical Details in One Place - Lookout

Security Affairs

Press · 31 Aug 2016, 07:00 · iOS 9.3.4 and minor versions are vulnerable to the Trident Exploit - Security Affairs

Zimperium

Press · 28 Aug 2016, 07:00 · Understanding - “Pegasus” a Targeted Attack Remotely Infecting iOS Devices - Zimperium

SecurityWeek

Press · 26 Aug 2016, 07:00 · Apple Issues Emergency Fix for iOS Zero-Days: What You Need to Know - SecurityWeek

The Citizen Lab

Press · 24 Aug 2016, 07:00 · The Million Dollar Dissident: NSO Group's iPhone Zero-Days Used Against A UAE Human Rights Defender - The Citizen Lab

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 8.7 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

Source entries and unverified repository candidates are counted separately.

Public exploit evidence

exploitdb #44213 2017-03-12
exploitdb #44836 2018-06-05

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 8.8; EPSS 66.8%
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 13:57:45.780366+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

First press mention

24 Aug 2016, 07:00

Published

25 Aug 2016, 21:00

Added to the CISA KEV catalog

24 May 2022, 00:00

Latest press mention

13 Jan 2023, 15:27

Score calculated

05 Nov 2026, 13:57

PoCs on GitHub

2 repositories