5.9

CVE-2021-31957: fedoraproject fedora Uncontrolled Resource Consumption

CVSS: 5.9v3.1MediumModified
AliasesRHSA-2021:2350RHSA-2021:2351RHSA-2021:2352
Published 08-06-2021Last modified 07-10-2026
Open JSON

Vulnerability summary

CVE-2021-31957 is a medium (CVSS 5.9) Uncontrolled Resource Consumption vulnerability in fedoraproject fedora. EPSS estimates a 5.14% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
5.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-06-2021
    PublishedVulnerability first disclosed.
  2. 07-10-2026
    Last modifiedVulnerability information updated.

Description

ASP.NET Core Denial of Service Vulnerability

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

5.14%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 5.14% on 19-09-2026

19-09-202619-10-2026
EPSS score
5.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat58 products
  • aspnetcore-runtime-3.1< 0:3.1.16-1.el8_4
  • aspnetcore-runtime-5.0< 0:5.0.7-1.el8_4
  • aspnetcore-targeting-pack-3.1< 0:3.1.16-1.el8_4
  • aspnetcore-targeting-pack-5.0< 0:5.0.7-1.el8_4
  • dotnet< 0:5.0.204-1.el8_4
Microsoft10 products
Fedoraproject1 product
NuGet1 product
  • Microsoft.NETCore.App.Ref< 3.1.16 | ≥ 5.0.0, < 5.0.7

4 vendors · 70 products

References

26 links
Show all 26 references