CVE-2025-24209Network attack vector

Process crash via crafted WebKit content

Published Mar 31, 2025 · Updated Apr 2, 2026

Buffer overflow in WebKit in affected Apple operating systems and Safari allows remote attackers to crash a process via crafted web content. Apple identifies WebKit Bugzilla 286462 but has not disclosed the affected function, buffer, or unchecked memory operation. The target must process attacker-controlled web content, and successful exploitation interrupts the affected WebKit process rather than the whole device.

CVSS severity7.0
High
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in WebKit in affected Apple operating systems and Safari allows remote attackers to crash a process via crafted web content. Apple identifies WebKit Bugzilla 286462 but has not disclosed the affected function, buffer, or unchecked memory operation. The target must process attacker-controlled web content, and successful exploitation interrupts the affected WebKit process rather than the whole device.

The record

CVE
CVE-2025-24209
Published
Mar 31, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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=0 <18.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <18.4
Apple · Safariversion=0 <18.4
Apple · tvOSversion=0 <18.4
Apple · macOSversion=0 <15.4
Apple · iPadOSversion=0 <17.7.6
Apple · watchOSversion=0 <11.4

Published CVSS scores

7.0CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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