CVE-2017-2428
It allows remote HTTP/2 servers to have an unspecified impact via unknown vectors.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves nghttp2 before 1.17.0 in the "HTTPProtocol" component. It allows remote HTTP/2 servers to have an unspecified impact via unknown vectors.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.56% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apple/iphone os · apple/mac os x · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 2.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/97146Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038138
- https://github.com/nghttp2/nghttp2/releases/tag/v1.17.0Third Party Advisory
- https://support.apple.com/HT207601Vendor Advisory
- https://support.apple.com/HT207602Vendor Advisory
- https://support.apple.com/HT207615Vendor Advisory
- https://support.apple.com/HT207617Vendor Advisory
- http://www.securityfocus.com/bid/97146Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038138
- https://github.com/nghttp2/nghttp2/releases/tag/v1.17.0Third Party Advisory
- https://support.apple.com/HT207601Vendor Advisory
- https://support.apple.com/HT207602Vendor Advisory
- https://support.apple.com/HT207615Vendor Advisory
- https://support.apple.com/HT207617Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.