Medium 4.3Published Sep 18, 2015

CVE-2015-5824The NSURL implementation in the CFNetwork SSL component in Apple iOS before 9 does not properly verify X.509 certificates from SSL servers after a certificate change, which allows man-in-the-middle a…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects apple watchos and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The NSURL implementation in the CFNetwork SSL component in Apple iOS before 9 does not properly verify X.509 certificates from SSL servers after a certificate change, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

CVSS: 4.3 MEDIUM (v2.0, NVD)AV:A/AC:M/Au:N/C:P/I:P/A:N
Weakness (CWE): CWE-310
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

Affected products

Affected products

apple watchos apple:watchos	1.0	NVD
apple mac_os_x apple:mac_os_x	through 10.10.5	NVD
apple iphone_os apple:iphone_os	through 8.4.1	NVD

References

References

http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html	vendor-advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
http://www.securityfocus.com/bid/76764
http://www.securitytracker.com/id/1033609
https://support.apple.com/HT205212	vendor-advisory
https://support.apple.com/HT205213
https://support.apple.com/HT205267

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.