CVE-2023-40447

highpriority · track · 36EPSS 0.015 · 74 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.52% (74th) EPSS

CVSS 8.8 · high

Is it mine?

22 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-24

The issue was addressed with improved memory handling. This issue is fixed in iOS 17.1 and iPadOS 17.1, watchOS 10.1, iOS 16.7.2 and iPadOS 16.7.2, macOS Sonoma 14.1, Safari 17.1, tvOS 17.1. Processing web content may lead to arbitrary code execution.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimaryCWE-119US

affected products (22)

Products and version ranges known to be affected.

Apple Safariunspecified → 17.1enisa_euvdEU
Apple iOS and iPadOSunspecified → 16.7enisa_euvdEU
Apple iOS and iPadOSunspecified → 17.1enisa_euvdEU
Apple macOSunspecified → 14.1enisa_euvdEU
Apple tvOSunspecified → 17.1enisa_euvdEU
Apple watchOSunspecified → 10.1enisa_euvdEU
Apple Inc. MacOS≤ 14.1fstec_bduRU
Apple Inc. Safari≤ 17.1fstec_bduRU
Apple Inc. iOS≤ 17.1fstec_bduRU
Apple Inc. iOS≤ 16.7.2fstec_bduRU
Apple Inc. iPadOS≤ 17.1fstec_bduRU
Apple Inc. iPadOS≤ 16.7.2fstec_bduRU
Apple Inc. tvOS≤ 17.1fstec_bduRU
Apple Inc. watchOS≤ 10.1fstec_bduRU
apple ipados< 16.7.2nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple ipados17.0 → 17.1nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os< 16.7.2nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone os17.0 → 17.1nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos14.0 → 14.1nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple safari< 17.1nvdUScpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2744Apple Safari: Mehrere SchwachstellenDeutsch2023-10-25csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple Safari ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial of Service Zustand herbeizuführen.
WID-SEC-W-2023-2753Apple macOS: Mehrere SchwachstellenDeutsch2023-10-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen, Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.
WID-SEC-W-2023-2754Apple iOS und Apple iPadOS: Mehrere SchwachstellenDeutsch2023-10-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen, Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd cert_bund NVD CVE.org MITRE

published 2023-10-25modified 2026-06-17

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Related entries.

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+20997 more

references (40)

External citations — patches, advisories, analysis.

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