CVE-2026-57108: Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network.

highCVSS 7.5CVE-2026-57108

Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.5
Published: 2026-07-14
Last updated: 2026-07-20
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-57108

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2026-571081.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 63% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-57108	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] Microsoft DeveloperTools: Multiple vulnerabilitiescert-bund
highGHSA-rp2p-6cmp-jxj9: Microsoft Security Advisory CVE-2026-57108 – .NET Denial of Service Vulnerabilityghsa
unknownUSN-8553-1: .NET vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Microsoft .Net (July 15, 2026)cert-fr-avis
unknownNCSC-2026-0235 [1.00] [M/H] Vulnerabilities fixed in Microsoft Developer Toolsncsc-nl
highCVE-2026-57108: .NET Denial of Service Vulnerabilitymsrc

Recent advisories for Access of resource

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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highCVE-2026-66027: Suna before 0.9.102 contains a broken access control vulnerability in the message queue API th…nvd · 2026-07-24
highCVE-2026-9765: Note: The CVE and blog post don't exist because we determined this is actually a cloud-only iss…nvd · 2026-07-24
mediumCVE-2026-63260: Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excess…nvd · 2026-07-21