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CVE-2026-26127NVD

Vulnerability Summary

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.
Severity Level
HIGH(7.5)
Published Date
Mar 10, 2026
Last Modified
Apr 1, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
0.13%Probability
Root Weakness (CWE)
The software reads data past the end, or before the beginning, of the intended buffer.
CVSS v3.1 Base Metrics — Score 7.5 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Microsoft .net >= 10.0.0 and < 10.0.4
  • Microsoft .net >= 9.0.0 and < 9.0.14
  • Microsoft Bcl.memory >= 9.0.0 and < 9.0.14
  • Microsoft Bcl.memory >= 10.0.0 and < 10.0.4
Patched Versions
  • Microsoft .net 10.0.4
  • Microsoft .net 9.0.14
  • Microsoft Bcl.memory 9.0.14
  • Microsoft Bcl.memory 10.0.4
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🎁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.