8.1

CVE-2021-26701: fedoraproject fedora

CVSS: 8.1v3.1HighModified
AliasesRHSA-2021:0787RHSA-2021:0788RHSA-2021:0789
Published 25-02-2021Last modified 28-05-2026
Open JSON

Vulnerability summary

CVE-2021-26701 is a high (CVSS 8.1) vulnerability in fedoraproject fedora. EPSS estimates a 30.10% chance of exploitation in the next 30 days, higher than 98.2% of scored vulnerabilities.

Overall risk
38/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
30.10%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-02-2021
    PublishedVulnerability first disclosed.
  2. 28-05-2026
    Last modifiedVulnerability information updated.

Description

.NET Core Remote Code Execution Vulnerability

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

30.10%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 30.10% on 19-09-2026

19-09-202619-10-2026
EPSS score
30.10%

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

No weakness data has been published for this record.

Affected systems

Redhat75 products
  • aspnetcore-runtime-3.1< 0:3.1.13-1.el8_3
  • aspnetcore-runtime-5.0< 0:5.0.4-1.el8_3
  • aspnetcore-targeting-pack-3.1< 0:3.1.13-1.el8_3
  • aspnetcore-targeting-pack-5.0< 0:5.0.4-1.el8_3
  • dotnet< 0:2.1.522-1.el8_3 | < 0:5.0.104-1.el8_3
Microsoft15 products
Fedoraproject1 product
NuGet1 product
  • System.Text.Encodings.Web≥ 4.0.0, < 4.5.1 | ≥ 4.6.0, < 4.7.2 | ≥ 5.0.0, < 5.0.1

4 vendors · 92 products

References

38 links
Show all 38 references