CVE-2024-40782: Apple Safari · Processing maliciously crafted web content may lead to an unexpected process crash
Affects Apple SafariSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 17.6 : patch Apple Safari as a priority.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.9% chance of exploitation in 30 days – higher than 61% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 17.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple Safari | Affected
| Fixed in– |
AI-suggested
Organizations and users should immediately update all affected Apple devices and Safari browsers to the patched versions: Safari 17.6, iOS 16.7.9 and 17.6, iPadOS 16.7.9 and 17.6, macOS Sonoma 14.6, tvOS 17.6, visionOS 1.3, and watchOS 10.6. Network administrators should consider implementing web filtering to block access to suspicious or untrusted websites until patches are applied. Employing endpoint protection solutions capable of detecting anomalous process crashes or memory corruption attempts may provide additional defense. Security teams should monitor for unusual Safari crashes or system instability that could indicate exploitation attempts. Educating users about the risks of visiting untrusted websites and encouraging safe browsing habits can reduce exposure. For high-security environments, consider restricting Safari usage or deploying alternative browsers until patches are confirmed. Regularly review and apply Apple security advisories to stay current with updates.
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 17.6, iOS 16.7.9 and iPadOS 16.7.9, iOS 17.6 and iPadOS 17.6, macOS Sonoma 14.6, tvOS 17.6, visionOS 1.3, watchOS 10.6. Processing maliciously crafted web content may lead to an unexpected process crash.
References
- support.apple.com/en-us/120908 (opens in a new tab)
- support.apple.com/en-us/120909 (opens in a new tab)
- support.apple.com/en-us/120911 (opens in a new tab)
- support.apple.com/en-us/120913 (opens in a new tab)
- support.apple.com/en-us/120914 (opens in a new tab)
- support.apple.com/en-us/120915 (opens in a new tab)
- support.apple.com/en-us/120916 (opens in a new tab)
- support.apple.com/en-us/HT214121 (opens in a new tab)
- support.apple.com/en-us/HT214117 (opens in a new tab)
- support.apple.com/en-us/HT214116 (opens in a new tab)
- support.apple.com/en-us/HT214124 (opens in a new tab)
- support.apple.com/en-us/HT214119 (opens in a new tab)
- support.apple.com/en-us/HT214123 (opens in a new tab)
- support.apple.com/en-us/HT214122 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/16 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/15 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/23 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/21 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/17 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/22 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jul/18 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/09/msg00006.html (opens in a new tab)
- support.apple.com/kb/HT214124 (opens in a new tab)
- support.apple.com/kb/HT214123 (opens in a new tab)
- support.apple.com/kb/HT214122 (opens in a new tab)
- support.apple.com/kb/HT214119 (opens in a new tab)
- support.apple.com/kb/HT214117 (opens in a new tab)
- support.apple.com/kb/HT214116 (opens in a new tab)