CVE-2018-16843
Status: ModifiedHigh (7.5)—
nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 47%
- Percentile among all scored CVEs: 99
- Score date: 10/2/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (5)
CWEs
- CWE-400
- CWE-400
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
- http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html
- http://seclists.org/fulldisclosure/2021/Sep/36
- http://www.securityfocus.com/bid/105868
- http://www.securitytracker.com/id/1042038
- https://access.redhat.com/errata/RHSA-2018:3653
- https://access.redhat.com/errata/RHSA-2018:3680
- https://access.redhat.com/errata/RHSA-2018:3681
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16843
- https://support.apple.com/kb/HT212818
- https://usn.ubuntu.com/3812-1/
- https://www.debian.org/security/2018/dsa-4335
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
- http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html
- http://seclists.org/fulldisclosure/2021/Sep/36
- http://www.securityfocus.com/bid/105868
- http://www.securitytracker.com/id/1042038
- https://access.redhat.com/errata/RHSA-2018:3653
- https://access.redhat.com/errata/RHSA-2018:3680
- https://access.redhat.com/errata/RHSA-2018:3681
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16843
- https://support.apple.com/kb/HT212818
- https://usn.ubuntu.com/3812-1/
- https://www.debian.org/security/2018/dsa-4335
Raw JSON (NVD)
Show
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