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Package Instance

Lookup for vulnerable packages by Package URL.

Purlpkg:nuget/System.Text.RegularExpressions@4.3.1
Typenuget
Namespace
NameSystem.Text.RegularExpressions
Version4.3.1
Qualifiers
Subpath
Is_vulnerablefalse
Next_non_vulnerable_versionnull
Latest_non_vulnerable_versionnull
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-fp5s-gbub-8kfx
vulnerability_id VCID-fp5s-gbub-8kfx
summary 
Uncontrolled Resource Consumption
A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka '.NET Framework and .NET Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.
references
0
reference_url https://access.redhat.com/errata/RHSA-2019:1259
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://access.redhat.com/errata/RHSA-2019:1259
1
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0820.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.0/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-2019-0820.json
2
reference_url https://api.first.org/data/v1/epss?cve=CVE-2019-0820
reference_id
reference_type
scores
0
value 0.02652
scoring_system epss
scoring_elements 0.85852
published_at 2026-05-07T12:55:00Z
1
value 0.02652
scoring_system epss
scoring_elements 0.85779
published_at 2026-04-21T12:55:00Z
2
value 0.02652
scoring_system epss
scoring_elements 0.85802
published_at 2026-04-24T12:55:00Z
3
value 0.02652
scoring_system epss
scoring_elements 0.85812
published_at 2026-04-26T12:55:00Z
4
value 0.02652
scoring_system epss
scoring_elements 0.85813
published_at 2026-04-29T12:55:00Z
5
value 0.02652
scoring_system epss
scoring_elements 0.8583
published_at 2026-05-05T12:55:00Z
6
value 0.02652
scoring_system epss
scoring_elements 0.85687
published_at 2026-04-01T12:55:00Z
7
value 0.02652
scoring_system epss
scoring_elements 0.857
published_at 2026-04-02T12:55:00Z
8
value 0.02652
scoring_system epss
scoring_elements 0.85718
published_at 2026-04-04T12:55:00Z
9
value 0.02652
scoring_system epss
scoring_elements 0.85724
published_at 2026-04-07T12:55:00Z
10
value 0.02652
scoring_system epss
scoring_elements 0.85744
published_at 2026-04-08T12:55:00Z
11
value 0.02652
scoring_system epss
scoring_elements 0.85754
published_at 2026-04-09T12:55:00Z
12
value 0.02652
scoring_system epss
scoring_elements 0.85769
published_at 2026-04-11T12:55:00Z
13
value 0.02652
scoring_system epss
scoring_elements 0.85766
published_at 2026-04-12T12:55:00Z
14
value 0.02652
scoring_system epss
scoring_elements 0.85762
published_at 2026-04-13T12:55:00Z
15
value 0.02652
scoring_system epss
scoring_elements 0.85781
published_at 2026-04-16T12:55:00Z
16
value 0.02652
scoring_system epss
scoring_elements 0.85785
published_at 2026-04-18T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2019-0820
3
reference_url https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820
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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820
4
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=1705506
reference_id 1705506
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=1705506
5
reference_url https://nvd.nist.gov/vuln/detail/CVE-2019-0820
reference_id CVE-2019-0820
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-2019-0820
6
reference_url https://github.com/advisories/GHSA-cmhx-cq75-c4mj
reference_id GHSA-cmhx-cq75-c4mj
reference_type
scores
0
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-cmhx-cq75-c4mj
7
reference_url https://access.redhat.com/errata/RHSA-2019:1236
reference_id RHSA-2019:1236
reference_type
scores
url https://access.redhat.com/errata/RHSA-2019:1236
fixed_packages
0
url pkg:nuget/System.Text.RegularExpressions@4.3.1
purl pkg:nuget/System.Text.RegularExpressions@4.3.1
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:nuget/System.Text.RegularExpressions@4.3.1
aliases CVE-2019-0820, GHSA-cmhx-cq75-c4mj
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-fp5s-gbub-8kfx
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:nuget/System.Text.RegularExpressions@4.3.1