CVE-2025-50334
An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component
CVSS
7.5
High
EPSS
1.0%
p57
KEV
—
Exploit Today
17
0-100
Published: Jan 8, 2026 · Last modified: Jul 15, 2026 · CWE-770
1.0%EPSS · 30 days1.0%
2026-06-302026-07-16
An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component
- github.comhttps://github.com/FPokerFace/Security-Advisory/tree/main/CVE-2025-50334
- github.comhttps://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md
- github.comhttps://github.com/TechnitiumSoftware/DnsServer/blob/v13.3/DnsServerCore/Dns/DnsServer.cs
- github.comhttps://github.com/TechnitiumSoftware/DnsServer/commit/7229b217238213cc6275eea68a7e17d73df1603e
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-50334
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2428058
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-50334.json
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-217107.5 HIG97.8%
——29A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`.
When this occurs, `dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`.
* This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**2dCVE-2026-261307.5 HIG85.0%
——25Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.2dCVE-2026-489337.5 HIG84.9%
——25A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2GiB.
This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.1dCVE-2026-455917.5 HIG82.4%
——25Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.2dCVE-2021-366307.5 HIG80.5%
——24DDOS reflection amplification vulnerability in eAut module of Ruckus Wireless SmartZone controller that allows remote attackers to perform DOS attacks via crafted request.8dCVE-2025-97847.5 HIG80.2%
——24A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).17d