What is CVE-2014-8439?

CVE-2014-8439 is a high-severity vulnerability in Adobe Air, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2014-11-25.

How severe is CVE-2014-8439?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2014-8439 known to be exploited?

Yes. CVE-2014-8439 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

Buffer overflow in Adobe Air

CVE-2014-8439

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.

Vulnerability class: Buffer Overflow

Published 2014-11-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.204 (97.5th percentile), scored 2026-10-18.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.204 · newest: 0.204 · change: 0.000

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-05-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-15.

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Public proof-of-concept exploits

References

exchange.xforce.ibmcloud.com/vulnerabilities/98932 (VDB Entry, Third Party Advisory, vdb-entry)
www.f-secure.com/weblog/archives/00002768.html (Third Party Advisory)
www.securitytracker.com/id/1031259 (VDB Entry, Third Party Advisory, vdb-entry)
lists.opensuse.org/opensuse-security-announce/2014-12/msg00004.html (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/71289 (VDB Entry, Third Party Advisory, vdb-entry)
secunia.com/advisories/60217 (Permissions Required, third-party-advisory)
lists.opensuse.org/opensuse-security-announce/2014-12/msg00001.html (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2014-11/msg00020.html (vendor-advisory, Third Party Advisory)
rhn.redhat.com/errata/RHSA-2014-1915.html (vendor-advisory, Vendor Advisory)
helpx.adobe.com/security/products/flash-player/apsb14-22.html (Vendor Advisory)

Frequently asked questions

What is CVE-2014-8439?: CVE-2014-8439 is a high-severity vulnerability in Adobe Air, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2014-11-25.
How severe is CVE-2014-8439?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2014-8439 known to be exploited?: Yes. CVE-2014-8439 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.