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Three steps to block CVE attacks in real time

Stop exploitation before patches exist with Contrast CVE Shield

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The three steps

STEP 1

Validate reachability with scope sensors

Pre-production scanners cannot tell you if a vulnerable method actually executes. Instrument scope sensors around vulnerable methods in each CVE definition to observe reachability continuously as a byproduct of live traffic

DO THIS: Sort your CVE backlog by runtime reachability. Suppress unexecuted CVEs and escalate those with active sensors under production traffic.

STEP 2

Detect active exploit attempts

CVE Shield detects the instant a CVE is triggered in a live exploitation attempt, whether the payload is hand-crafted or AI-generated. Every detected trigger links directly to its specific CVE ID.

DO THIS: Review detection activity during Monitor mode. Prioritize CVEs showing live trigger activity for advancement to Block mode.

STEP 3

Enforce per-CVE micro-sandboxing

The per-CVE microsandbox enforces a targeted allowlist of system-level capabilities while execution is inside the vulnerable scope—blocking OS process execution, JNDI lookups, and remote class loading at the JDK call regardless of payload encoding.

DO THIS: Run Monitor mode for 1–2 weeks to baseline legitimate behavior. Advance to Block mode per CVE, starting with the highest-severity reachable CVEs.

The numbers that matter

  • 28.3% of CVEs are exploited on or before day of disclosure
  • 82% false-positive rate in legacy scanning tools
  • 30% of CVEs in an application are active in production

Questions to ask before you buy or renew

  • When a critical CVE drops on a Friday, how long before I know whether we are exposed — and what is the compensating control during that window?
  • When a critical CVE drops on a Friday, how long before I know whether we are exposed — and what is the compensating control during that window?
  • Does your runtime protection give me a per-CVE allow list, or a global behavioral policy?
  • Can your tool show me a SOC incident for a blocked exploit — pre-enriched with CVE ID, CWE, and full call stack — without manual log correlation?
  • How does your tool handle novel payload variants and AI-generated exploits that bypass signature-based detection?

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