Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.
CVE-2025-55248
This medium-severity CVE scores 4.8 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 91% 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).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.8
- EG Score
- 4.8(medium)
- EG Risk
- —
- EPSS
- 48.2%
- KEV
- Not listed
Published
October 14, 2025
Last Modified
October 23, 2025
References (1)
Vendor Advisories for CVE-2025-55248(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- 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
- RHSA-2025:23225Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.25.0 Release.
Patch Availability(11)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | netstandard-targeting-pack-2.1-9.0 (9.0.111-0ubuntu1~25.10.1) @ questing | 2026-05-29 | 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 | devspaces/udi-rhel9:3.25.0-1765582207 | 2025-12-15 | redhat |
| redhat | dotnet8.0-0:8.0.121-1.el9_4 | 2025-10-16 | redhat |
| redhat | dotnet8.0-0:8.0.121-1.el8_10 | 2025-10-15 | redhat |
| redhat | dotnet8.0-0:8.0.121-1.el9_6 | 2025-10-15 | redhat |
| redhat | dotnet9.0-0:9.0.111-1.el9_6 | 2025-10-15 | redhat |
| redhat | dotnet9.0-0:9.0.111-1.el8_10 | 2025-10-15 | redhat |
| redhat | dotnet8.0-0:8.0.121-1.el10_0 | 2025-10-15 | redhat |
| redhat | dotnet9.0-0:9.0.111-1.el10_0 | 2025-10-15 | 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
(12 across 1 ecosystem)
NuGet(12)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Microsoft.NetCore.App.Runtime.linux-arm | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.linux-arm64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.linux-musl-arm | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.linux-musl-arm64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.linux-musl-x64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.linux-x64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.osx-arm64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.osx-x64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.win-arm | — | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.win-arm64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.win-x64 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
| Microsoft.NetCore.App.Runtime.win-x86 | 8.0.0 ... 8.0.8 (20 versions) | 8.0.21 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(9)
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-2025:18148IMPORTANT2025-10-15
RHSA-2025:18148 — Important
- Red HatRHSA-2025:18149IMPORTANT2025-10-15
RHSA-2025:18149 — Important
- Red HatRHSA-2025:18150IMPORTANT2025-10-15
RHSA-2025:18150 — Important
- Red HatRHSA-2025:18151IMPORTANT2025-10-15
RHSA-2025:18151 — Important
- Red HatRHSA-2025:18152IMPORTANT2025-10-15
RHSA-2025:18152 — Important
- Red HatRHSA-2025:18153IMPORTANT2025-10-15
RHSA-2025:18153 — Important
- Red HatRHSA-2025:18256IMPORTANT2025-10-15
RHSA-2025:18256 — Important
- Microsoft MSRCCVE-2025-552482025-10-14
.NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability
- UbuntuUSN-7822-1MEDIUM
.NET vulnerabilities
Data Freshness Timeline
(refreshed 9× in last 7d / 43× 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.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 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
- 2026-07-15 01:59 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
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 12:11 UTCOSV refresh
Show 65 moreShow fewer
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-02 17:01 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-29 14:06 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
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-27 03:08 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
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-19 19:25 UTCEPSS rescore
- 2026-06-19 19:25 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 00:05 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-15 17:48 UTCEPSS rescore
- 2026-06-14 23:17 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-29 20:53 UTCEG score recompute
- 2026-05-29 20:53 UTCVendor advisory
- 2026-05-29 19:20 UTCOSV refresh
- 2026-05-29 13:44 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-55248?
When was CVE-2025-55248 disclosed?
Is CVE-2025-55248 actively exploited?
What is the CVSS score of CVE-2025-55248?
How do I remediate CVE-2025-55248?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-55248
Is Your Infrastructure Affected by CVE-2025-55248?
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