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Vulnerability details: VCID-9w67-8kj8-aaam
Vulnerability ID VCID-9w67-8kj8-aaam
Aliases CVE-2022-21986
GHSA-x459-p2rx-f8ff
Summary Denial Of Service .NET Denial of Service Vulnerability, This vulnerability affects applications that utilize the Kestrel web server when processing certain HTTP/2 and HTTP/3 requests.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
rhas Important https://access.redhat.com/errata/RHSA-2022:0495
rhas Important https://access.redhat.com/errata/RHSA-2022:0496
rhas Important https://access.redhat.com/errata/RHSA-2022:0499
rhas Important https://access.redhat.com/errata/RHSA-2022:0500
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-21986.json
epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00196 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00326 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00349 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00391 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00402 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00407 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00417 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00417 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00417 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00417 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00417 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
epss 0.00417 https://api.first.org/data/v1/epss?cve=CVE-2022-21986
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=2051490
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-x459-p2rx-f8ff
cvssv3.1 7.5 https://github.com/dotnet/announcements/issues/207
generic_textual HIGH https://github.com/dotnet/announcements/issues/207
cvssv3.1 8.1 https://github.com/dotnet/aspnetcore
generic_textual HIGH https://github.com/dotnet/aspnetcore
cvssv3.1_qr HIGH https://github.com/dotnet/aspnetcore/security/advisories/GHSA-x459-p2rx-f8ff
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4HMQOHV7G5TF6OMBN6DNTDOKQQU7KHMM
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4HMQOHV7G5TF6OMBN6DNTDOKQQU7KHMM
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CCTBSBE3PNIMXG6ALX2CQG4ZEH7W3YAT
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CCTBSBE3PNIMXG6ALX2CQG4ZEH7W3YAT
cvssv3.1 7.5 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986
generic_textual HIGH https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2022-21986
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2022-21986
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21986
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21986
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-21986.json
https://api.first.org/data/v1/epss?cve=CVE-2022-21986
https://github.com/dotnet/announcements/issues/207
https://github.com/dotnet/aspnetcore
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4HMQOHV7G5TF6OMBN6DNTDOKQQU7KHMM
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4HMQOHV7G5TF6OMBN6DNTDOKQQU7KHMM/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CCTBSBE3PNIMXG6ALX2CQG4ZEH7W3YAT
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CCTBSBE3PNIMXG6ALX2CQG4ZEH7W3YAT/
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21986
2051490 https://bugzilla.redhat.com/show_bug.cgi?id=2051490
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:macos:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:macos:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2022-21986 https://nvd.nist.gov/vuln/detail/CVE-2022-21986
GHSA-x459-p2rx-f8ff https://github.com/advisories/GHSA-x459-p2rx-f8ff
GHSA-x459-p2rx-f8ff https://github.com/dotnet/aspnetcore/security/advisories/GHSA-x459-p2rx-f8ff
RHSA-2022:0495 https://access.redhat.com/errata/RHSA-2022:0495
RHSA-2022:0496 https://access.redhat.com/errata/RHSA-2022:0496
RHSA-2022:0499 https://access.redhat.com/errata/RHSA-2022:0499
RHSA-2022:0500 https://access.redhat.com/errata/RHSA-2022:0500
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-2022-21986.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:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/dotnet/announcements/issues/207
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:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Found at https://github.com/dotnet/aspnetcore
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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4HMQOHV7G5TF6OMBN6DNTDOKQQU7KHMM
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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CCTBSBE3PNIMXG6ALX2CQG4ZEH7W3YAT
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://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986
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:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2022-21986
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-2022-21986
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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21986
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 0.37910
EPSS Score 0.00085
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.