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Medium 4.3Published Nov 21, 2015
CVE-2015-5859The CFNetwork HTTPProtocol component in Apple iOS before 9 and OS X before 10.11 does not properly recognize the HSTS preload list during a Safari private-browsing session, which makes it easier for…
Updated under an hour ago ()
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It affects apple mac_os_x and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
The CFNetwork HTTPProtocol component in Apple iOS before 9 and OS X before 10.11 does not properly recognize the HSTS preload list during a Safari private-browsing session, which makes it easier for remote attackers to obtain sensitive information by sniffing the network.
- CVSS
- 4.3 MEDIUM (v2.0, NVD)AV:N/AC:M/Au:N/C:P/I:N/A:N
- Weakness (CWE)
- CWE-200
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 16, 2026
- First seen by InfoSec Signals
- Nov 1, 2026
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.