CVE-2015-8644

Exp

Adobe Flash Player before 18.0.0.324 and 19.x and 20.x before 20.0.0.267 on Windows and OS X and before 11.2.202.559 on Linux, Adobe AIR before 20.0.0.233, Adobe AIR SDK before 20.0.0.233, and Adobe AIR SDK & Compiler before 20.0.0.233 allow attackers to execute arbitrary code by leveraging an unspecified "type confusion."

Published: 2015-12-28 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-8644 is rated High Exploit Risk (82/100): CVSS High severity, with high exploitation likelihood (EPSS 47.08%, 98th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-8644

EDB-ID Source Kind Published Link
39476 exploit_db edb 2016-02-19 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-8644

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-18 49.46% 47.08% -2.37%
2 2025-07-15 48.63% 49.46% +0.82%
3 2025-07-02 — 48.63% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8644

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2015-8644

OS Trackers for CVE-2015-8644

vendor priority summary link
gentoo normal CVE-2015-8644: 1 GLSA(s) (201601-03), 1 atom(s) (www-plugins/adobe-flash); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-8644
redhat critical — https://access.redhat.com/security/cve/CVE-2015-8644
ubuntu medium CVE-2015-8644 medium priority: Ubuntu including 1 source packages (flashplugin-nonfree), 5 status rows across 5 suites (precise, trusty, upstream, vivid, wily): released 5. https://ubuntu.com/security/CVE-2015-8644

NVD evaluator notes for CVE-2015-8644

Comment: <a href="http://cwe.mitre.org/data/definitions/843.html">CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')</a>

Affected software / configurations for CVE-2015-8644

Vendor Product Version Raw CPE
adobe flash_player <= 18.0.0.268 cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
adobe flash_player 19.0.0.185 cpe:2.3:a:adobe:flash_player:19.0.0.185:*:*:*:*:*:*:*
adobe flash_player 19.0.0.207 cpe:2.3:a:adobe:flash_player:19.0.0.207:*:*:*:*:*:*:*
adobe flash_player 19.0.0.226 cpe:2.3:a:adobe:flash_player:19.0.0.226:*:*:*:*:*:*:*
adobe flash_player 19.0.0.245 cpe:2.3:a:adobe:flash_player:19.0.0.245:*:*:*:*:*:*:*
adobe flash_player 20.0.0.228 cpe:2.3:a:adobe:flash_player:20.0.0.228:*:*:*:*:*:*:*
adobe flash_player 20.0.0.235 cpe:2.3:a:adobe:flash_player:20.0.0.235:*:*:*:*:*:*:*
adobe flash_player <= 11.2.202.554 cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
adobe air_sdk <= 20.0.0.204 cpe:2.3:a:adobe:air_sdk:*:*:*:*:*:*:*:*
adobe air_sdk_\&_compiler <= 20.0.0.204 cpe:2.3:a:adobe:air_sdk_\&_compiler:*:*:*:*:*:*:*:*
adobe air <= 20.0.0.204 cpe:2.3:a:adobe:air:*:*:*:*:*:*:*:*

References for CVE-2015-8644

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00046.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00047.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00048.html
http://rhn.redhat.com/errata/RHSA-2015-2697.html
http://www.securityfocus.com/bid/79704
http://www.securitytracker.com/id/1034544
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
https://helpx.adobe.com/security/products/flash-player/apsb16-01.html Patch Vendor Advisory
https://security.gentoo.org/glsa/201601-03
https://www.exploit-db.com/exploits/39476/
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