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CVE-2017-11292

KEVAdobe Flash Player Type Confusion Vulnerability

Adobe Flash Player contains a type confusion vulnerability which can allow for remote code execution.

Adobe Flash Player version 27.0.0.159 and earlier has a flawed bytecode verification procedure, which allows for an untrusted value to be used in the calculation of an array index. This can lead to type confusion, and successful exploitation could lead to arbitrary code execution.

CVSS 3.1 vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
PublishedOct 22, 2017
Last modifiedJun 17, 2026
Added to KEVMar 3, 2022
Remediation dueMar 24, 2022
    75
    Risk assessment · High

    Actively exploited. Patch immediately.

    Exploitation
    Confirmed in the wild (CISA KEV)
    Federal remediation deadline
    Overdue by 1677 days
    CVSS
    8.8 HIGH
    EPSS (30-day exploit probability)
    11.9% · top 4% of all CVEs
    Weakness
    CWE-843
    Attack vector
    Network, remotely reachable
    1. 1.The impacted product is end-of-life and should be disconnected if still in use.
    2. 2.Treat as emergency change: patch or isolate internet-facing instances first.
    3. 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
    4. 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

    Assessment is derived automatically from the live signals above; verify against your own asset inventory.