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Vulnerability details: VCID-81d4-th14-aaak
Vulnerability ID VCID-81d4-th14-aaak
Aliases CVE-2020-8659
Summary CVE-2020-8659 envoy: Excessive CPU and/or memory usage when proxying HTTP/1.1
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
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 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8659.json
epss 0.00171 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
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epss 0.00201 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
epss 0.00214 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
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epss 0.00223 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
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epss 0.00240 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
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epss 0.00559 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
epss 0.00929 https://api.first.org/data/v1/epss?cve=CVE-2020-8659
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rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1802539
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-8659
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-8659
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-8659
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2020:0734
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8659.json
https://api.first.org/data/v1/epss?cve=CVE-2020-8659
https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv
https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html
https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history
1802539 https://bugzilla.redhat.com/show_bug.cgi?id=1802539
cpe:2.3:a:cncf:envoy:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:cncf:envoy:*:*:*:*:*:*:*:*
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: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:*:*:*:*:*:*:*
CVE-2020-8659 https://nvd.nist.gov/vuln/detail/CVE-2020-8659
ISTIO-SECURITY-2020-003 https://istio.io/latest/news/security/ISTIO-SECURITY-2020-003/
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-2020-8659.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-2020-8659
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-2020-8659
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-2020-8659
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 0.39275
EPSS Score 0.00171
Published At May 18, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.