ASP.NET Core Security Feature Bypass Vulnerability
CVE-2023-36558
This medium-severity CVE scores 6.2 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).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.2
- EG Score
- 6.2(medium)
- EG Risk
- 44(Track*)EG Risk 44/100SSVC: 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 computedSeverity62% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS
- 61.8%
- KEV
- Not listed
Published
November 14, 2023
Last Modified
January 1, 2025
References (2)
- secure@microsofthttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36558
- af854a3a-2127-422b-91ae-364da2661108https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36558
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | netstandard-targeting-pack-2.1-8.0 (8.0.100-0ubuntu1~23.10.1) @ mantic | 2026-05-24 | ubuntu |
| redhat | dotnet7.0-0:7.0.114-1.el9_3 | 2023-11-15 | redhat |
| redhat | dotnet6.0-0:6.0.125-1.el9_3 | 2023-11-15 | redhat |
| redhat | rh-dotnet60-dotnet-0:6.0.125-1.el7_9 | 2023-11-15 | redhat |
| redhat | dotnet8.0-0:8.0.100-2.el8_9 | 2023-11-15 | redhat |
| redhat | dotnet7.0-0:7.0.114-1.el8_9 | 2023-11-15 | redhat |
| redhat | dotnet6.0-0:6.0.125-1.el8_9 | 2023-11-15 | redhat |
| redhat | dotnet8.0-0:8.0.100-2.el9_3 | 2023-11-15 | 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
(1 across 1 ecosystem)
NuGet(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Microsoft.AspNetCore.Components | 6.0.0 ... 6.0.9 (24 versions) | 6.0.25 | — |
All Vendor Advisories
(9)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- Microsoft MSRCCVE-2023-365582023-11-14
ASP.NET Core Security Feature Bypass Vulnerability
- Red HatRHSA-2023:7253MODERATE2023-11-14
RHSA-2023:7253 — Moderate
- Red HatRHSA-2023:7254MODERATE2023-11-14
RHSA-2023:7254 — Moderate
- Red HatRHSA-2023:7255MODERATE2023-11-14
RHSA-2023:7255 — Moderate
- Red HatRHSA-2023:7256MODERATE2023-11-14
RHSA-2023:7256 — Moderate
- Red HatRHSA-2023:7257MODERATE2023-11-14
RHSA-2023:7257 — Moderate
- Red HatRHSA-2023:7258MODERATE2023-11-14
RHSA-2023:7258 — Moderate
- Red HatRHSA-2023:7259MODERATE2023-11-14
RHSA-2023:7259 — Moderate
- UbuntuUSN-6480-1MEDIUM
.NET vulnerabilities
Data Freshness Timeline
(refreshed 14× in last 7d / 55× 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 115 total refreshes for this CVE.
- 2026-07-23 14:16 UTCEPSS rescore
- 2026-07-23 14:16 UTCEPSS rescore
- 2026-07-23 02:24 UTCEG score recompute
- 2026-07-22 23:11 UTCEG score recompute
- 2026-07-22 14:06 UTCEPSS rescore
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- 2026-07-11 08:26 UTCEPSS rescore
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- 2026-06-27 04:37 UTCOSV refresh
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- 2026-06-10 22:17 UTCEPSS rescore
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- 2026-06-09 15:17 UTCOSV refresh
- 2026-06-08 14:16 UTCEPSS rescore
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- 2026-05-31 22:29 UTCEPSS rescore
Related CVEs(same vendor)
Frequently asked(5)
What is CVE-2023-36558?
When was CVE-2023-36558 disclosed?
Is CVE-2023-36558 actively exploited?
What is the CVSS score of CVE-2023-36558?
How do I remediate CVE-2023-36558?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-36558
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