Is CVE-2014-8439 being actively exploited?

Yes. CVE-2014-8439 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on May 25, 2022.

What is the CVSS score for CVE-2014-8439?

CVE-2014-8439 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2014-8439

HIGH · CVSS 8.8CISA KEV: actively exploitedEPSS 20.4%EU EUVD: exploited

Adobe Flash Player before 13.0.0.258 and 14.x and 15.x before 15.0.0.239 on Windows and OS X and before 11.2.202.424 on Linux, Adobe AIR before 15.0.0.293, Adobe AIR SDK before 15.0.0.302, and Adobe AIR SDK & Compiler before 15.0.0.302 allow attackers to execute arbitrary code or cause a denial of service (invalid pointer dereference) via unspecified vectors.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-119
EPSS score: 20.4% (97th percentile)
In CISA KEV: Yes, added May 25, 2022
In EU EUVD: Yes (EUVD-2014-8276)
Published: November 25, 2014
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Adobe Flash Player Dereferenced Pointer Vulnerability

Added to the KEV catalog on May 25, 2022; federal remediation due June 15, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-8276 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

adobe / air
adobe / air sdk
adobe / air sdk & compiler
adobe / flash player
apple / mac os x
apple / macos
linux / linux kernel
microsoft / windows

References

http://helpx.adobe.com/security/products/flash-player/apsb14-22.html(Vendor Advisory)
http://helpx.adobe.com/security/products/flash-player/apsb14-26.html(Vendor Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-11/msg00020.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00001.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00004.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2014-1915.html(Vendor Advisory)
http://secunia.com/advisories/60217(Permissions Required)
http://www.securityfocus.com/bid/71289(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1031259(Third Party Advisory, VDB Entry)
https://exchange.xforce.ibmcloud.com/vulnerabilities/98932(Third Party Advisory, VDB Entry)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-8439(US Government Resource)
https://www.f-secure.com/weblog/archives/00002768.html(Third Party Advisory)

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

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