High severity · published May 16, 2019
CVE-2019-0820
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'
7.5
CVSS
5.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.7% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NC
.net Core · Microsoft
1.0; 1.1; 2.1; 2.2 · source: NVD
NF
.net Framework · Microsoft
2.0; 3.0; 3.5; 3.5.1; 4.5.2; 4.6; +18 more · source: NVD
EL
Enterprise Linux · Redhat
8.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.1; 8.2; 8.4; 8.6 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
8.2; 8.4; 8.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
8.2; 8.4; 8.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-0820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-0820
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1259
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820
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