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VulnerabilityPublished Updated

CVE-2023-40441: Apple iOS and iPadOS · Processing web content may lead to a denial-of-service

Affects Apple iOS and iPadOSSource CVE Database V5

0

Not known to be exploited : upgrade to 17 when convenient.

Data as of 26 Oct 2026, 09:15 UTC

Severity
Medium

Rated Medium by the CNA (apple) · No CVSS score from NVD or the CNA

EPSS
1.1% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 17

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Sep 2023

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Apple iOS and iPadOS to 17.

Affected software

ProductAffectedFixed in
Apple iOS and iPadOSAffected
  • <17
Fixed in
  • 17

AI-suggested

A fix is available in iOS 17 and iPadOS 17. Users and administrators should update affected devices to these versions or later to remediate the vulnerability.

Description

CVE-2023-40441 is a denial-of-service vulnerability in Apple iOS and iPadOS caused by a resource exhaustion issue when processing web content. The issue was addressed by improved input validation and fixed in iOS 17 and iPadOS 17. Versions prior to 17 are affected.

References

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