CVE-2015-5879
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets,...
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.
Exploit likelihood
What each source reports
NVD Score used
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.
- Record
CVE-2015-5879- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.
- Record
CVE-2015-5879- Updated
- 2026-11-02
EUVDEUVD-2015-5825 No score
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.
- Record
EUVD-2015-5825- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jcjc-m39p-5c5c No score
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets,...
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.
- Record
GHSA-jcjc-m39p-5c5c- Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-5879 is a medium vulnerability (CVSS 5.0) in Apple Iphone Os, published September 18, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.44%, the 84th percentile. No source names a fixed version.
References
securitytracker.com/id/1033609
support.apple.com/HT205212
lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
securityfocus.com/bid/76764
nvd.nist.gov/vuln/detail/CVE-2015-5879
github.com/advisories/GHSA-jcjc-m39p-5c5c