CVE-2023-32402Network attack vector

Sensitive information disclosure via WebKit out-of-bounds read

Published Jun 23, 2023 · Updated Dec 5, 2024

An out-of-bounds read in WebKit on affected Apple platforms allows remote attackers to disclose sensitive information via web content. Apple identifies WebKit as the locus but has not published the malformed input, parser path, or read operation that crosses a memory boundary. Exploitation requires processing attacker-controlled web content and is limited to information disclosure; no integrity or availability impact is reported.

CVSS severity6.5
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in WebKit on affected Apple platforms allows remote attackers to disclose sensitive information via web content. Apple identifies WebKit as the locus but has not published the malformed input, parser path, or read operation that crosses a memory boundary. Exploitation requires processing attacker-controlled web content and is limited to information disclosure; no integrity or availability impact is reported.

The record

CVE
CVE-2023-32402
Published
Jun 23, 2023
Updated
Dec 5, 2024
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-125, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 5, 2024Record 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 <16.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <16.5
Apple · Safariversion=unspecified <16.5
Apple · tvOSversion=unspecified <16.5
Apple · macOSversion=unspecified <13.4
Apple · watchOSversion=unspecified <9.5

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1189Drive-by Compromise

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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