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Vulnerability details: VCID-qzf4-cp5y-aaaq
Vulnerability ID VCID-qzf4-cp5y-aaaq
Aliases CVE-2019-18802
Summary CVE-2019-18802 envoy: malformed request header may cause bypass of route matchers resulting in escalation of privileges or information disclosure
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-284 Improper Access Control
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-18802.json
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00048 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00048 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
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epss 0.00048 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00094 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00508 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00627 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00627 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00627 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
epss 0.00693 https://api.first.org/data/v1/epss?cve=CVE-2019-18802
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1773447
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-18802
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-18802
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-18802
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-18802.json
https://api.first.org/data/v1/epss?cve=CVE-2019-18802
https://blog.envoyproxy.io
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/envoyproxy/envoy/commits/master
https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4
https://groups.google.com/forum/#%21forum/envoy-users
https://groups.google.com/forum/#!forum/envoy-users
1773447 https://bugzilla.redhat.com/show_bug.cgi?id=1773447
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-2019-18802 https://nvd.nist.gov/vuln/detail/CVE-2019-18802
ISTIO-SECURITY-2019-007 https://istio.io/latest/news/security/ISTIO-SECURITY-2019-007/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-18802.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:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/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:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18802
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18802
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18802
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 0.10668
EPSS Score 0.00045
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.