CVE-2015-5851
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does...
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does not require an encrypted session, which allows local users to obtain cleartext multipeer data via an encrypted-to-unencrypted downgrade attack.
Exploit likelihood
What each source reports
NVD Score used
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does not require an encrypted session, which allows local users to obtain cleartext multipeer data via an encrypted-to-unencrypted downgrade attack.
- Record
CVE-2015-5851- CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does not require an encrypted session, which allows local users to obtain cleartext multipeer data via an encrypted-to-unencrypted downgrade attack.
- Record
CVE-2015-5851- Updated
- 2026-11-02
EUVDEUVD-2015-5797 No score
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does not require an encrypted session, which allows local users to obtain cleartext multipeer data via an encrypted-to-unencrypted downgrade attack.
- Record
EUVD-2015-5797- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8wgf-m2rf-h5rh No score
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does...
The convenience initializer in the Multipeer Connectivity component in Apple iOS before 9 does not require an encrypted session, which allows local users to obtain cleartext multipeer data via an encrypted-to-unencrypted downgrade attack.
- Record
GHSA-8wgf-m2rf-h5rh- Weakness
- CWE-200
- 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-2015-5851 is a low vulnerability (CVSS 2.1) 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 0.36%, the 29th 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-2015-5851
github.com/advisories/GHSA-8wgf-m2rf-h5rh