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Vulnerability details: VCID-9nfh-cgh8-ykam
Vulnerability ID VCID-9nfh-cgh8-ykam
Aliases CVE-2019-9511
Summary Excessive CPU usage in HTTP/2 with small window updates
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9511.json
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.15262 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.19992 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.19992 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
epss 0.19992 https://api.first.org/data/v1/epss?cve=CVE-2019-9511
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual medium https://mailman.nginx.org/pipermail/nginx-announce/2019/000249.html
cvssv2 7.8 https://nvd.nist.gov/vuln/detail/CVE-2019-9511
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-9511
archlinux Medium https://security.archlinux.org/AVG-1022
archlinux Medium https://security.archlinux.org/AVG-1023
archlinux Medium https://security.archlinux.org/AVG-1024
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html
https://access.redhat.com/errata/RHSA-2019:2692
https://access.redhat.com/errata/RHSA-2019:2745
https://access.redhat.com/errata/RHSA-2019:2746
https://access.redhat.com/errata/RHSA-2019:2775
https://access.redhat.com/errata/RHSA-2019:2799
https://access.redhat.com/errata/RHSA-2019:2925
https://access.redhat.com/errata/RHSA-2019:2939
https://access.redhat.com/errata/RHSA-2019:2949
https://access.redhat.com/errata/RHSA-2019:2955
https://access.redhat.com/errata/RHSA-2019:2966
https://access.redhat.com/errata/RHSA-2019:3041
https://access.redhat.com/errata/RHSA-2019:3932
https://access.redhat.com/errata/RHSA-2019:3933
https://access.redhat.com/errata/RHSA-2019:3935
https://access.redhat.com/errata/RHSA-2019:4018
https://access.redhat.com/errata/RHSA-2019:4019
https://access.redhat.com/errata/RHSA-2019:4020
https://access.redhat.com/errata/RHSA-2019:4021
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9511.json
https://api.first.org/data/v1/epss?cve=CVE-2019-9511
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15604
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15605
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15606
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9511
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9513
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9514
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9516
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
https://kb.cert.org/vuls/id/605641/
https://kc.mcafee.com/corporate/index?page=content&id=SB10296
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUBYAF6ED3O4XCHQ5C2HYENJLXYXZC4M/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZLUYPYY3RX4ZJDWZRJIKSULYRJ4PXW7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/
https://mailman.nginx.org/pipermail/nginx-announce/2019/000249.html
https://seclists.org/bugtraq/2019/Aug/40
https://seclists.org/bugtraq/2019/Sep/1
https://security.netapp.com/advisory/ntap-20190823-0002/
https://security.netapp.com/advisory/ntap-20190823-0005/
https://support.f5.com/csp/article/K02591030
https://support.f5.com/csp/article/K02591030?utm_source=f5support&amp%3Butm_medium=RSS
https://www.debian.org/security/2019/dsa-4505
https://www.debian.org/security/2019/dsa-4511
https://www.debian.org/security/2020/dsa-4669
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
https://www.synology.com/security/advisory/Synology_SA_19_33
1741860 https://bugzilla.redhat.com/show_bug.cgi?id=1741860
934885 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934885
ASA-201908-12 https://security.archlinux.org/ASA-201908-12
ASA-201908-13 https://security.archlinux.org/ASA-201908-13
ASA-201908-17 https://security.archlinux.org/ASA-201908-17
AVG-1022 https://security.archlinux.org/AVG-1022
AVG-1023 https://security.archlinux.org/AVG-1023
AVG-1024 https://security.archlinux.org/AVG-1024
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_communications_broker:3.2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_communications_broker:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:graalvm:19.2.0:*:*:*:enterprise:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:graalvm:19.2.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*
cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:*
CVE-2019-9511 https://nvd.nist.gov/vuln/detail/CVE-2019-9511
RHSA-2020:0922 https://access.redhat.com/errata/RHSA-2020:0922
RHSA-2020:1445 https://access.redhat.com/errata/RHSA-2020:1445
RHSA-2020:2067 https://access.redhat.com/errata/RHSA-2020:2067
RHSA-2020:2565 https://access.redhat.com/errata/RHSA-2020:2565
RHSA-2020:3192 https://access.redhat.com/errata/RHSA-2020:3192
RHSA-2024:5856 https://access.redhat.com/errata/RHSA-2024:5856
USN-4099-1 https://usn.ubuntu.com/4099-1/
USN-6754-1 https://usn.ubuntu.com/6754-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9511.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9511
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9511
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.94317
EPSS Score 0.15262
Published At Aug. 11, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:03:12.336495+00:00 Nginx Importer Import https://nginx.org/en/security_advisories.html 37.0.0