What’s Vulnerable › Vulnerabilities

CVE-2015-5859

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-11-22 · updated 2026-06-17
• Weakness: CWE-200

Description

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.

Affected products

• Apple Iphone Os: through 8.4.1
• macOS: through 10.10.4

References

• https://support.apple.com/HT205212
• https://support.apple.com/HT205267
• https://support.apple.com/HT205212
• https://support.apple.com/HT205267

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