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Package Instance

Lookup for vulnerable packages by Package URL.

Purlpkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.1
Typenuget
Namespace
NameMicrosoft.AspNetCore.Server.Kestrel.Core
Version2.1.1
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version2.1.25
Latest_non_vulnerable_version2.3.6
Affected_by_vulnerabilities
0
url VCID-d4mn-hm9u-3qbk
vulnerability_id VCID-d4mn-hm9u-3qbk
summary 
Moderate severity vulnerability that affects Microsoft.AspNetCore.All, Microsoft.AspNetCore.App, and Microsoft.AspNetCore.Server.Kestrel.Core
Microsoft is aware of a denial of service vulnerability in ASP.NET Core when a malformed request is terminated. An attacker who successfully exploited this vulnerability could cause a denial of service attack.

The update addresses the vulnerability by correcting how ASP.NET Core handles such requests.
references
0
reference_url https://github.com/aspnet/Announcements/issues/311
reference_id
reference_type
scores
0
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/aspnet/Announcements/issues/311
1
reference_url https://github.com/advisories/GHSA-cgpw-2gph-2r9g
reference_id GHSA-cgpw-2gph-2r9g
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/advisories/GHSA-cgpw-2gph-2r9g
fixed_packages
0
url pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.2
purl pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.2
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-v6vu-9ybt-tqbc
1
vulnerability VCID-vuu9-gwek-cub2
resource_url http://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.2
aliases GHSA-cgpw-2gph-2r9g, GMS-2018-36, GMS-2018-38, GMS-2018-44
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-d4mn-hm9u-3qbk
1
url VCID-v6vu-9ybt-tqbc
vulnerability_id VCID-v6vu-9ybt-tqbc
summary Microsoft Security Advisory CVE-2019-0564: ASP.NET Core Denial of Service Vulnerability
references
0
reference_url https://access.redhat.com/errata/RHSA-2019:0040
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://access.redhat.com/errata/RHSA-2019:0040
1
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0564.json
reference_id
reference_type
scores
0
value 5.9
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0564.json
2
reference_url https://api.first.org/data/v1/epss?cve=CVE-2019-0564
reference_id
reference_type
scores
0
value 0.10024
scoring_system epss
scoring_elements 0.9321
published_at 2026-06-05T12:55:00Z
1
value 0.10024
scoring_system epss
scoring_elements 0.93199
published_at 2026-06-04T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2019-0564
3
reference_url https://github.com/aspnet/Announcements/issues/334
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/aspnet/Announcements/issues/334
4
reference_url https://github.com/github/advisory-database/issues/302
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/github/advisory-database/issues/302
5
reference_url http://www.securityfocus.com/bid/106413
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url http://www.securityfocus.com/bid/106413
6
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=1660634
reference_id 1660634
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=1660634
7
reference_url https://nvd.nist.gov/vuln/detail/CVE-2019-0564
reference_id CVE-2019-0564
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2019-0564
8
reference_url https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0564
reference_id CVE-2019-0564
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0564
9
reference_url https://github.com/advisories/GHSA-6px8-22w5-w334
reference_id GHSA-6px8-22w5-w334
reference_type
scores
url https://github.com/advisories/GHSA-6px8-22w5-w334
fixed_packages
0
url pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.7
purl pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.7
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-vuu9-gwek-cub2
resource_url http://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.7
aliases CVE-2019-0564, GHSA-6px8-22w5-w334
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-v6vu-9ybt-tqbc
2
url VCID-vuu9-gwek-cub2
vulnerability_id VCID-vuu9-gwek-cub2
summary multiple issues
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-1723.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-1723.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-1723
reference_id
reference_type
scores
0
value 0.0405
scoring_system epss
scoring_elements 0.88719
published_at 2026-06-04T12:55:00Z
1
value 0.0405
scoring_system epss
scoring_elements 0.88736
published_at 2026-06-05T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-1723
2
reference_url https://github.com/dotnet/announcements/issues/170
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/dotnet/announcements/issues/170
3
reference_url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3L27CGRVEWUPELNJOGTCW6GLEDBECB4B
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3L27CGRVEWUPELNJOGTCW6GLEDBECB4B
4
reference_url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RRXHERXW4KR5WCP76UDW5PC7GX3YQLUW
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RRXHERXW4KR5WCP76UDW5PC7GX3YQLUW
5
reference_url https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1723
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1723
6
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=1914258
reference_id 1914258
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=1914258
7
reference_url https://security.archlinux.org/ASA-202103-16
reference_id ASA-202103-16
reference_type
scores
url https://security.archlinux.org/ASA-202103-16
8
reference_url https://security.archlinux.org/ASA-202103-17
reference_id ASA-202103-17
reference_type
scores
url https://security.archlinux.org/ASA-202103-17
9
reference_url https://security.archlinux.org/AVG-1449
reference_id AVG-1449
reference_type
scores
0
value High
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-1449
10
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-1723
reference_id CVE-2021-1723
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-1723
11
reference_url https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1723
reference_id CVE-2021-1723
reference_type
scores
url https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1723
12
reference_url https://github.com/advisories/GHSA-242j-2gm6-5rwx
reference_id GHSA-242j-2gm6-5rwx
reference_type
scores
0
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-242j-2gm6-5rwx
13
reference_url https://access.redhat.com/errata/RHSA-2021:0094
reference_id RHSA-2021:0094
reference_type
scores
url https://access.redhat.com/errata/RHSA-2021:0094
14
reference_url https://access.redhat.com/errata/RHSA-2021:0095
reference_id RHSA-2021:0095
reference_type
scores
url https://access.redhat.com/errata/RHSA-2021:0095
15
reference_url https://access.redhat.com/errata/RHSA-2021:0096
reference_id RHSA-2021:0096
reference_type
scores
url https://access.redhat.com/errata/RHSA-2021:0096
16
reference_url https://access.redhat.com/errata/RHSA-2021:0114
reference_id RHSA-2021:0114
reference_type
scores
url https://access.redhat.com/errata/RHSA-2021:0114
fixed_packages
0
url pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.25
purl pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.25
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.25
aliases CVE-2021-1723, GHSA-242j-2gm6-5rwx
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-vuu9-gwek-cub2
Fixing_vulnerabilities
Risk_score4.0
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.AspNetCore.Server.Kestrel.Core@2.1.1