CVE-2024-27838: Apple Safari · Cross-site Scripting
Affects Apple SafariSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium · fixed in 17.5 : update Apple Safari when convenient.
Data as of 26 Oct 2026, 09:15 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 17.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Jun 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple Safari | Affected
| Fixed in– |
AI-suggested
Apple has released official patches fixing this vulnerability in Safari 17.5 and related OS updates including iOS 16.7.8 and 17.5, iPadOS 16.7.8 and 17.5, macOS Sonoma 14.5, tvOS 17.5, visionOS 1.2, and watchOS 10.5. Users and administrators should apply these updates promptly to mitigate the risk. Patch status is confirmed as fixed by Apple’s official security advisories.
Description
CVE-2024-27838 is a medium severity vulnerability in Apple Safari that allows a maliciously crafted webpage to fingerprint the user. This issue was addressed by Apple through additional logic to prevent fingerprinting. The vulnerability is fixed in Safari 17.5 and corresponding updates to iOS, iPadOS, macOS Sonoma, tvOS, visionOS, and watchOS. The CVSS score is 6.5, indicating a moderate impact primarily on user privacy due to fingerprinting. No known exploits are reported in the wild at this time.
References
- support.apple.com/en-us/120896 (opens in a new tab)
- support.apple.com/en-us/120898 (opens in a new tab)
- support.apple.com/en-us/120901 (opens in a new tab)
- support.apple.com/en-us/120902 (opens in a new tab)
- support.apple.com/en-us/120903 (opens in a new tab)
- support.apple.com/en-us/120905 (opens in a new tab)
- support.apple.com/en-us/120906 (opens in a new tab)
- support.apple.com/en-us/HT214101 (opens in a new tab)
- support.apple.com/en-us/HT214100 (opens in a new tab)
- support.apple.com/en-us/HT214106 (opens in a new tab)
- support.apple.com/en-us/HT214108 (opens in a new tab)
- support.apple.com/en-us/HT214104 (opens in a new tab)
- support.apple.com/en-us/HT214103 (opens in a new tab)
- support.apple.com/en-us/HT214102 (opens in a new tab)
- seclists.org/fulldisclosure/2024/Jun/5 (opens in a new tab)
- support.apple.com/kb/HT214108 (opens in a new tab)
- support.apple.com/kb/HT214106 (opens in a new tab)
- support.apple.com/kb/HT214104 (opens in a new tab)
- support.apple.com/kb/HT214102 (opens in a new tab)
- support.apple.com/kb/HT214100 (opens in a new tab)