CVE-2026-114154
validatedZero produced an exploit or a check.GHSA-3893-7fxc-qvff ↗EUVD-2026-121977 ↗
check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
nuget:Microsoft.AspNetCore.Server.HttpSys = 2.3.10; = 2.3.11; = 2.3.12; = 2.3.13; >= 8.0.0, <= 8.0.33; >= 9.0.0, <= 9.0.22; >= 10.0.0, <= 10.0.14
fixed in 2.3.14, 8.0.34, 9.0.23, 10.0.15
CWE-401 Missing Release of Memory after Effective Lifetime
ETK-2026-4111Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:nuget/Microsoft.AspNetCore.Server.HttpSys
pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64
pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64
pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86
+5h02mTTV
11mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable description
Windows ASP.NET Core applications using affected HttpSys packages or Windows runtime packages are affected. An unauthenticated network attacker can exhaust request and connection resources, causing denial of service, by sending malformed chunked requests with conflicting length metadata. The application must be reachable over the network and use an affected version.
mitigation
Update Microsoft.AspNetCore.Server.HttpSys to 2.3.14, or install the applicable Windows runtime: 8.0.34, 9.0.23, or 10.0.15. Rebuild and redeploy self-contained applications, then restart affected applications.
fixed in 2.3.14, 8.0.34, 9.0.23, 10.0.15
check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
11m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-10 18:19Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–
outcome
Contextual check: a technique exists and was validated, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-10 18:19Zghsa: trigger signal, started the run
- 2026-11-10 18:19Zcve.org record for CVE-2026-114154
this entry in the feed
GET /api/v1/feed/CVE-2026-114154
{ "etk_id": "ETK-2026-4111", "cve_id": "CVE-2026-114154", "display_id": "CVE-2026-114154", "ghsa_id": "GHSA-3893-7fxc-qvff", "euvd_id": "EUVD-2026-121977", "status": "published", "anchor_state": "anchored", "title": "Resource exhaustion in ASP.NET Core HttpSys", "summary": "Windows ASP.NET Core applications using affected HttpSys packages or Windows runtime packages are affected. An unauthenticated network attacker can exhaust request and connection resources, causing denial of service, by sending malformed chunked requests with conflicting length metadata. The application must be reachable over the network and use an affected version.", "mitigation": "Update Microsoft.AspNetCore.Server.HttpSys to 2.3.14, or install the applicable Windows runtime: 8.0.34, 9.0.23, or 10.0.15. Rebuild and redeploy self-contained applications, then restart affected applications.", "vendor": "nuget", "product": "nuget:Microsoft.AspNetCore.Server.HttpSys", "affected": [ { "affected_notes": [], "affected_ranges": [ "= 2.3.10" ], "ecosystem": "nuget", "fixed_versions": [ "2.3.14" ], "package_name": "Microsoft.AspNetCore.Server.HttpSys", "purl": "pkg:nuget/Microsoft.AspNetCore.Server.HttpSys" }, { "affected_notes": [], "affected_ranges": [ "= 2.3.11" ], "ecosystem": "nuget", "fixed_versions": [ "2.3.14" ], "package_name": "Microsoft.AspNetCore.Server.HttpSys", "purl": "pkg:nuget/Microsoft.AspNetCore.Server.HttpSys" }, { "affected_notes": [], "affected_ranges": [ "= 2.3.12" ], "ecosystem": "nuget", "fixed_versions": [ "2.3.14" ], "package_name": "Microsoft.AspNetCore.Server.HttpSys", "purl": "pkg:nuget/Microsoft.AspNetCore.Server.HttpSys" }, { "affected_notes": [], "affected_ranges": [ "= 2.3.13" ], "ecosystem": "nuget", "fixed_versions": [ "2.3.14" ], "package_name": "Microsoft.AspNetCore.Server.HttpSys", "purl": "pkg:nuget/Microsoft.AspNetCore.Server.HttpSys" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x86", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x86", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86" }, { "affected_notes": [], "affected_ranges": [ ">= 10.0.0, <= 10.0.14" ], "ecosystem": "nuget", "fixed_versions": [ "10.0.15" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 10.0.0, <= 10.0.14" ], "ecosystem": "nuget", "fixed_versions": [ "10.0.15" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 10.0.0, <= 10.0.14" ], "ecosystem": "nuget", "fixed_versions": [ "10.0.15" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x86", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86" } ], "cwes": [ 401 ], "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": true, "check_confidence_basis": "assessed", "exploit": false, "pipeline_minutes": 11.289075516666667, "t0_at": "2026-11-10T18:19:15.771000+00:00", "signals": { "check": { "at": "2026-11-10T23:20:46.882369+00:00", "days": 0.20938786306712964, "is_lower_bound": false, "measured_at": "2026-11-10T18:19:15.771000+00:00", "url": null }, "trigger_signal": { "at": "2026-11-10T18:19:15.771000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-11-10T18:19:15.771000+00:00", "url": "https://github.com/dotnet/aspnetcore/security/advisories/GHSA-3893-7fxc-qvff" } } }
published 2026-11-10 23:09Z
last change 2026-11-11 05:00Z
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