Search/CVE-2025-55315
● CVE — Critical

CVE-2025-55315

VendormicrosoftProductvisual studio 2022, asp.net coreDiscoveredOct 14, 2025UpdatedOct 28, 2025

Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.

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CVSS v3.1
9.9 CRITICAL
EPSS
66.5%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
3
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 22, 2026
▲ 0.69pp
65.8% → 66.5% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityLOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Connections
6 relationships
Timeline
disclosure → media coverage
Oct 14, 2025
Disclosure — published as a CVE record. · last revised by NVD Oct 28, 2025
Oct 14, 2025
advisories.ncsc.nl reports: NCSC-2025-0313 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Developer Tools
Oct 16, 2025
ubuntu.com reports: USN-7822-1: .NET vulnerabilities
Oct 17, 2025
securityweek.com reports: ‘Highest Ever’ Severity Score Assigned by Microsoft to ASP.NET Core Vulnerability
Public PoC (7)
github.com/nickcopi/CVE-2025-55315-detection-playgroundgithub.com/sirredbeard/CVE-2025-55315-reprogithub.com/7huukdlnkjkjba/CVE-2025-55315-github.com/jlinebau/CVE-2025-55315-Scanner-Monitorgithub.com/ZemarKhos/CVE-2025-55315-PoC-Exploitgithub.com/MartinFabianIonut/CVE-2025-55315github.com/NetVanguard-cmd/CVE-2025-55315
Unverified third-party code — review before executing.