November 2, 2026

CVE Watchtower

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CVE-2025-55315NVD

Vulnerability Summary

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.
Severity Level
CRITICAL(9.9)
Published Date
Oct 14, 2025
Last Modified
Oct 18, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
66.53%Probability
Root Weakness (CWE)
CWE-444: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 9.9 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • Microsoft Asp.net Core >= 2.3.0 and < 2.3.6
  • Microsoft Asp.net Core >= 8.0.0 and < 8.0.21
  • Microsoft Asp.net Core >= 9.0.0 and < 9.0.10
  • Microsoft Visual Studio 2022 >= 17.10.0 and < 17.10.20
  • Microsoft Visual Studio 2022 >= 17.12.10 and < 17.12.13
  • Microsoft Visual Studio 2022 >= 17.14.0 and < 17.14.17
Patched Versions
  • Microsoft Asp.net Core 2.3.6
  • Microsoft Asp.net Core 8.0.21
  • Microsoft Asp.net Core 9.0.10
  • Microsoft Visual Studio 2022 17.10.20
  • Microsoft Visual Studio 2022 17.12.13
  • Microsoft Visual Studio 2022 17.14.17
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References