CVE-2023-43010Known exploitationNetwork attack vector

Memory corruption via malformed web content processing

Published Mar 12, 2026 · Updated Mar 12, 2026

Memory corruption in WebKit in Apple iOS, iPadOS, macOS, and Safari allows remote attackers to corrupt memory via crafted web content. WebKit's undisclosed vulnerable locus performs incorrect memory handling while processing attacker-controlled page data; Apple has not published the specific operation or object involved. Exploitation requires the target to process the content and user interaction under the published assessment, and the resulting corruption can affect confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in WebKit in Apple iOS, iPadOS, macOS, and Safari allows remote attackers to corrupt memory via crafted web content. WebKit's undisclosed vulnerable locus performs incorrect memory handling while processing attacker-controlled page data; Apple has not published the specific operation or object involved. Exploitation requires the target to process the content and user interaction under the published assessment, and the resulting corruption can affect confidentiality, integrity, and availability.

The record

CVE
CVE-2023-43010
Published
Mar 12, 2026
Updated
Mar 12, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-787, CWE-120, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 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 <15.8.7
  2. Affected versionversion=unspecified <16.7.15
  3. Affected versionversion=unspecified <17.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <15.8.7; version=unspecified <16.7.15; version=unspecified <17.2
Apple · Safariversion=unspecified <17.2
Apple · macOSversion=unspecified <14.2

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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.

Reported exploitation

Technologies

Your stack

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Your stack

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