External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network.
CVE-2025-26646
This high-severity CVE scores 8.0 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 38% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.0
- EG Score
- 8.0(medium)
- EG Risk
- 36(Track)EG Risk 36/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity80% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 66%
- KEV
- Not listed
Published
May 13, 2025
Last Modified
July 10, 2025
References (1)
Vendor Advisories for CVE-2025-26646(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2025-26646Microsoft Security Response Center (MSRC)High
.NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability
- RHSA-2026:9205Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- RHSA-2026:9080Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Patch Availability(10)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | netstandard-targeting-pack-2.1-8.0 (8.0.116-0ubuntu1~24.04.1) @ noble | 2026-05-30 | ubuntu |
| redhat | dotnet9-0-main-9.0.116-1.hum1 | 2026-04-21 | redhat |
| redhat | dotnet8-0-main-8.0.126-1.hum1 | 2026-04-20 | redhat |
| redhat | dotnet8.0-0:8.0.116-1.el10_0 | 2025-05-14 | redhat |
| redhat | dotnet9.0-0:9.0.106-1.el8_10 | 2025-05-14 | redhat |
| redhat | dotnet8.0-0:8.0.116-1.el8_10 | 2025-05-14 | redhat |
| redhat | dotnet9.0-0:9.0.106-1.el9_6 | 2025-05-14 | redhat |
| redhat | dotnet8.0-0:8.0.116-1.el9_4 | 2025-05-14 | redhat |
| redhat | dotnet9.0-0:9.0.106-1.el10_0 | 2025-05-14 | redhat |
| redhat | dotnet8.0-0:8.0.116-1.el9_6 | 2025-05-14 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
NuGet(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Microsoft.Build.Tasks.Core | 17.13.9, 17.13.25, 17.13.26, 17.14.5, 17.14.7 | 17.14.8 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(8)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHSA-2025:7571IMPORTANT2025-05-14
RHSA-2025:7571 — Important
- Red HatRHSA-2025:7589IMPORTANT2025-05-14
RHSA-2025:7589 — Important
- Red HatRHSA-2025:7598IMPORTANT2025-05-14
RHSA-2025:7598 — Important
- Red HatRHSA-2025:7599IMPORTANT2025-05-14
RHSA-2025:7599 — Important
- Red HatRHSA-2025:7600IMPORTANT2025-05-14
RHSA-2025:7600 — Important
- Red HatRHSA-2025:7601IMPORTANT2025-05-14
RHSA-2025:7601 — Important
- Red HatRHSA-2025:7603IMPORTANT2025-05-14
RHSA-2025:7603 — Important
- UbuntuUSN-7509-1MEDIUM
.NET vulnerability
Data Freshness Timeline
(refreshed 8× in last 7d / 29× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 146 total refreshes for this CVE.
- 2026-09-15 03:09 UTCEPSS rescore
- 2026-09-13 16:46 UTCEPSS rescore
- 2026-09-13 12:13 UTCOSV refresh
- 2026-09-12 15:00 UTCEPSS rescore
- 2026-09-11 14:51 UTCEPSS rescore
- 2026-09-11 09:35 UTCEPSS rescore
- 2026-09-10 09:33 UTCEPSS rescore
- 2026-09-08 21:59 UTCEPSS rescore
- 2026-09-07 16:00 UTCEPSS rescore
- 2026-09-06 13:46 UTCEPSS rescore
- 2026-09-06 13:46 UTCEPSS rescore
- 2026-09-05 15:28 UTCEPSS rescore
- 2026-09-04 05:05 UTCEPSS rescore
- 2026-09-02 14:11 UTCEPSS rescore
- 2026-09-01 13:52 UTCEPSS rescore
- 2026-09-01 04:38 UTCEPSS rescore
- 2026-08-30 19:16 UTCEPSS rescore
- 2026-08-30 01:21 UTCEPSS rescore
- 2026-08-28 21:40 UTCEPSS rescore
- 2026-08-27 14:24 UTCEPSS rescore
- 2026-08-25 13:47 UTCEPSS rescore
- 2026-08-25 13:30 UTCOSV refresh
- 2026-08-23 00:18 UTCEPSS rescore
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-20 22:54 UTCEPSS rescore
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- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-18 13:47 UTCEPSS rescore
- 2026-08-17 13:46 UTCEPSS rescore
- 2026-08-16 14:55 UTCEPSS rescore
- 2026-08-16 02:13 UTCEPSS rescore
- 2026-08-16 02:13 UTCEPSS rescore
- 2026-08-15 01:29 UTCEPSS rescore
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-09 13:45 UTCEPSS rescore
- 2026-08-09 05:27 UTCOSV refresh
- 2026-08-07 16:26 UTCEPSS rescore
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:16 UTCEPSS rescore
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 10:37 UTCEPSS rescore
- 2026-08-03 10:35 UTCEPSS rescore
- 2026-08-02 02:25 UTCEPSS rescore
- 2026-08-01 04:15 UTCEPSS rescore
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 01:29 UTCEPSS rescore
- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-27 14:12 UTCEPSS rescore
- 2026-07-26 14:53 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-24 06:11 UTCOSV refresh
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:52 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:07 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-13 22:29 UTCEPSS rescore
- 2026-07-13 22:29 UTCEPSS rescore
- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-08 15:14 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-07 01:51 UTCOSV refresh
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-26646?
When was CVE-2025-26646 disclosed?
Is CVE-2025-26646 actively exploited?
What is the CVSS score of CVE-2025-26646?
How do I remediate CVE-2025-26646?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-26646
Is Your Infrastructure Affected by CVE-2025-26646?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.