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Vulnerability details: VCID-jmzf-2r8j-aaaf
Vulnerability ID VCID-jmzf-2r8j-aaaf
Aliases CVE-2020-8663
Summary Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may exhaust file descriptors and/or memory when accepting too many connections.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-400 Uncontrolled Resource Consumption
System Score Found at
rhas Important https://access.redhat.com/errata/RHSA-2020:2798
rhas Important https://access.redhat.com/errata/RHSA-2020:2864
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8663.json
epss 0.00091 https://api.first.org/data/v1/epss?cve=CVE-2020-8663
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epss 0.0022 https://api.first.org/data/v1/epss?cve=CVE-2020-8663
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1844254
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-8663
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-8663
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-8663
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8663.json
https://api.first.org/data/v1/epss?cve=CVE-2020-8663
https://github.com/envoyproxy/envoy/security/advisories/GHSA-v8q7-fq78-4997
https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history
1844254 https://bugzilla.redhat.com/show_bug.cgi?id=1844254
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
CVE-2020-8663 https://nvd.nist.gov/vuln/detail/CVE-2020-8663
ISTIO-SECURITY-2020-007 https://istio.io/latest/news/security/ISTIO-SECURITY-2020-007/
RHSA-2020:2798 https://access.redhat.com/errata/RHSA-2020:2798
RHSA-2020:2864 https://access.redhat.com/errata/RHSA-2020:2864
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8663.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: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-8663
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-2020-8663
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:3.1/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-2020-8663
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 0.2735
EPSS Score 0.00091
Published At May 4, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.