LOW
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
Published Sep 18, 2015
2.1
LOWCVSS 2.0
EPSS 0.36%
Description
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
2.1 LOW NVD
AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.36% 0.00358
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00358
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.36% (0.00358) | 27.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00358) | 27.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00108) | 26.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
Weaknesses (1)
References (6)
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://www.securityfocus.com/bid/76764 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033609 vdb-entryx_refsource_SECTRACK
- https://support.apple.com/HT205212 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT205267 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://www.securityfocus.com/bid/76764 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1033609 | vdb-entryx_refsource_SECTRACK | |
| https://support.apple.com/HT205212 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/HT205267 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published Sep 18, 2015
Updated Aug 6, 2024
Reserved Aug 6, 2015
Link CVE-2015-5851
CISA Vulnrichment
Updated n/a