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PatchSiren cyber security CVE debrief

CVE-2017-2984 Adobe CVE debrief

CVE-2017-2984 is a high-severity Adobe Flash Player vulnerability published on 2017-02-15. The issue is an exploitable heap overflow in the H.264 decoder routine, and successful exploitation could lead to arbitrary code execution. NVD maps the issue to CWE-787 and rates it CVSS 3.1 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Adobe’s advisory APSB17-04 is the primary patch reference in the supplied corpus.

Vendor
Adobe
Product
Flash Player
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-15
Original CVE updated
2026-05-13
Advisory published
2017-02-15
Advisory updated
2026-05-13

Who should care

Security teams, endpoint administrators, and application owners that still support Adobe Flash Player or embedded Flash runtimes should treat this as a priority remediation item, especially on systems using browser-integrated Flash or the desktop runtime.

Technical summary

The vulnerability affects Adobe Flash Player versions 24.0.0.194 and earlier, including browser-integrated variants such as Chrome, Edge, and Internet Explorer, plus the desktop runtime entries listed by NVD. The flaw is a heap overflow in the H.264 decoder routine, which can be triggered remotely but requires user interaction. NVD classifies it as CWE-787 and associates it with high confidentiality, integrity, and availability impact if exploited successfully.

Defensive priority

High

Recommended defensive actions

  • Apply Adobe’s APSB17-04 update or a later fixed release so Flash Player is newer than 24.0.0.194.
  • Inventory every Flash Player deployment, including browser plug-ins and desktop runtime installations, and remove or disable Flash where it is no longer required.
  • Prioritize remediation on user workstations and any systems that can open untrusted web content or files.
  • Verify that downstream packaging or vendor channels have picked up the Adobe fix, including third-party Linux distributions referenced in the NVD record.
  • Plan and execute migration away from Flash-dependent workflows to reduce exposure to future Flash-era vulnerabilities.

Evidence notes

The analysis is based on the supplied CVE record and NVD metadata. Key evidence includes the CVE description of an exploitable heap overflow in the H.264 decoder routine, the affected version boundary of 24.0.0.194 and earlier, NVD’s CWE-787 mapping, and the CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The supplied corpus also links Adobe’s APSB17-04 advisory as the vendor patch reference. Timing context uses the CVE publication date of 2017-02-15; the 2026-05-13 modified date reflects record updates, not the original disclosure date.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-2984 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-2984

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2017-2984 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-2984

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.