Critical Alert 3 Active Exploits Detected Today

CVE-2025-39964 — Linux Kernel Race Condition Vulnerability →
CVE-2026-53266 — Linux Kernel Out-of-Bounds Write Vulnerability →
CVE-2025-39682 — Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability →
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September 20, 2026

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CVE-2026-93749NVD

Vulnerability Summary

source-map-js through 1.2.1 fails to validate the per-section offset line value in indexed source maps, allowing attackers to specify arbitrary numeric values. Attackers can supply extremely large offset line values that cause synchronous event loop blocking for extended periods, preventing the service from handling other requests.
Severity Level
HIGH(7.5)
Published Date
Sep 18, 2026
Last Modified
Sep 18, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.35%Probability
Root Weakness (CWE)
N/A
CVSS v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
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📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
⚙️Custom EPSS — Filter noise, focus on risk.
💬Webhooks — Slack & Teams integration.
🚫Ad-Free — Uninterrupted experience.

External References