CVE-2015-8659
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
- CVSS 3.0
- 10.0 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 3.96% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/mac os x · nghttp2/nghttp2 · apple/iphone os · apple/tvos · apple/watchos
- Source
- cve@mitre.org
EPSS 4.0% since 26 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://lists.apple.com/archives/security-announce/2016/Mar/msg00000.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00001.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00002.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175085.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175423.html
- http://www.openwall.com/lists/oss-security/2015/12/23/10
- http://www.openwall.com/lists/oss-security/2015/12/23/6
- http://www.securitytracker.com/id/1035353
- https://nghttp2.org/blog/2015/12/23/nghttp2-v1-6-0/Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201612-06
- https://support.apple.com/HT206166Vendor Advisory
- https://support.apple.com/HT206167Vendor Advisory
- https://support.apple.com/HT206168Vendor Advisory
- https://support.apple.com/HT206169Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00000.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00001.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00002.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175085.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175423.html
- http://www.openwall.com/lists/oss-security/2015/12/23/10
- http://www.openwall.com/lists/oss-security/2015/12/23/6
- http://www.securitytracker.com/id/1035353
- https://nghttp2.org/blog/2015/12/23/nghttp2-v1-6-0/Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201612-06
- https://support.apple.com/HT206166Vendor Advisory
- https://support.apple.com/HT206167Vendor Advisory
- https://support.apple.com/HT206168Vendor Advisory
- https://support.apple.com/HT206169Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.