CVE-2023-42875Network attack vector

Arbitrary code execution via WebKit memory handling

Published Apr 11, 2025 · Updated Feb 26, 2026

Code injection in WebKit in affected Apple operating systems and Safari allows context-dependent attackers to execute arbitrary code. Apple identifies improper memory handling in WebKit but has not disclosed the faulty operation or memory-safety condition. Processing attacker-influenced web content requires user interaction and yields code execution in the affected WebKit process.

CVSS severity7.3
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in WebKit in affected Apple operating systems and Safari allows context-dependent attackers to execute arbitrary code. Apple identifies improper memory handling in WebKit but has not disclosed the faulty operation or memory-safety condition. Processing attacker-influenced web content requires user interaction and yields code execution in the affected WebKit process.

The record

CVE
CVE-2023-42875
Published
Apr 11, 2025
Updated
Feb 26, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-94, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <17
Apple · Safariversion=unspecified <17
Apple · tvOSversion=unspecified <17
Apple · macOSversion=unspecified <14
Apple · watchOSversion=unspecified <10

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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