Is CVE-2014-9163 being actively exploited?

Yes. CVE-2014-9163 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on April 13, 2022.

What is the CVSS score for CVE-2014-9163?

CVE-2014-9163 has a CVSS 3.1 base score of 7.8 (HIGH).

CVE-2014-9163

HIGH · CVSS 7.8CISA KEV: actively exploitedEPSS 44.9%EU EUVD: exploited

Stack-based buffer overflow in Adobe Flash Player before 13.0.0.259 and 14.x and 15.x before 15.0.0.246 on Windows and OS X and before 11.2.202.425 on Linux allows attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in December 2014.

Key facts

CVSS score: 7.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-121
EPSS score: 44.9% (99th percentile)
In CISA KEV: Yes, added April 13, 2022
In EU EUVD: Yes (EUVD-2014-8988)
Published: December 10, 2014
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Adobe Flash Player Stack-Based Buffer Overflow Vulnerability

Added to the KEV catalog on April 13, 2022; federal remediation due May 4, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-8988 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on November 17, 2025.

View on the EU Vulnerability Database

Affected products

adobe / flash player
apple / mac os x
linux / linux kernel
microsoft / windows

References

http://helpx.adobe.com/security/products/flash-player/apsb14-27.html(Vendor Advisory)
https://github.com/cisagov/vulnrichment/issues/196(Issue Tracking)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-9163(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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