CVE-2026-56170: Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

highCVSS 7.5CVE-2026-56170

Allocation of resources without limits or throttling in ASP.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: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-56170

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-2026-561701.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 60% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-56170	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-j8gr-8fp3-5q5h: Microsoft Security Advisory CVE-2026-56170 – .NET Denial of Service Vulnerabilityghsa
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-2026-56170: ASP.NET Core Denial of Service Vulnerabilitymsrc

Recent advisories for Allocation of resources

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.

unknownCVE-2026-14539: An allocation of resources without limits vulnerability in the HTTP handler component of Googl…nvd · 2026-07-31
unknownCVE-2026-65624: Allocation of Resources Without Limits or Throttling vulnerability in ninenines cowboy allows …nvd · 2026-07-28
unknownCVE-2026-59248: Allocation of resources without limits vulnerability in ninenines cowlib allows an unauthentic…nvd · 2026-07-28
unknownCVE-2026-59251: Allocation of resources without limits in Erlang/OTP public_key certificate path validation al…nvd · 2026-07-27
highCVE-2026-58389: Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Rust bindi…nvd · 2026-07-27
highCVE-2026-55968: Inefficient Algorithmic Complexity, Allocation of Resources Without Limits or Throttling vulne…nvd · 2026-07-27