7.3

CVE-2025-55247: microsoft .net Link Following

CVSS: 7.3v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-55247GHSA-w3q9-fxm7-j8fqBIT-dotnet-2025-55247
Published 14-10-2025Last modified 22-02-2026
Open JSON

Vulnerability summary

CVE-2025-55247 is a high (CVSS 7.3) Link Following vulnerability in microsoft .net. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.1% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.61%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 1
RHBA-2025:20916RHBA-2025:20993RHSA-2025:18148RHSA-2025:18149RHSA-2025:18150RHSA-2025:18151

Timeline

  1. 14-10-2025
    PublishedVulnerability first disclosed.
  2. 22-02-2026
    Last modifiedVulnerability information updated.

Description

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.61%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.61% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.61%

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

Ubuntu5 products
  • dotnet10< 10.0.100-10.0.0-0ubuntu1~24.04.1 | < 10.0.100-10.0.0~rc2-0ubuntu1~25.10.2 | < 10.0.100-10.0.0~rc2-0ubuntu1
  • dotnet6All versions (No fix recorded)
  • dotnet7All versions (No fix recorded)
  • dotnet8< 8.0.121-8.0.21-0ubuntu1~22.04.1 | < 8.0.121-8.0.21-0ubuntu1~24.04.1 | < 8.0.121-8.0.21-0ubuntu1~25.10.1
  • dotnet9< 9.0.111-9.0.10-0ubuntu1~25.10.1
Microsoft3 products
NuGet3 products
  • Microsoft.Build≥ 17.15.0-preview-25277-114, < 18.0.0-preview-25476-107 | ≥ 17.14.0, < 17.14.28 | ≥ 17.12.0, < 17.12.50 | ≥ 17.11.0, < 17.11.48 | ≥ 17.10.0, < 17.10.46 | ≥ 17.8.0, < 17.8.43
  • Microsoft.Build.Tasks.Core≥ 17.15.0-preview-25277-114, < 18.0.0-preview-25476-107 | ≥ 17.14.0, < 17.14.28 | ≥ 17.12.0, < 17.12.50 | ≥ 17.11.0, < 17.11.48 | ≥ 17.10.0, < 17.10.46 | ≥ 17.8.0, < 17.8.43
  • Microsoft.Build.Utilities.Core≥ 17.15.0-preview-25277-114, < 18.0.0-preview-25476-107 | ≥ 17.14.0, < 17.14.28 | ≥ 17.12.0, < 17.12.50 | ≥ 17.11.0, < 17.11.48 | ≥ 17.10.0, < 17.10.46 | ≥ 17.8.0, < 17.8.43

3 vendors · 11 products

References

7 links