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CVE-2015-8403

26
FAUCET Score

CVE-2015-8403 is a critical use-after-free vulnerability affecting Adobe Flash Player on Windows, OS X, and Linux, as well as Adobe AIR, AIR SDK, and AIR SDK & Compiler. This flaw allows unauthenticated remote attackers to execute arbitrary code on vulnerable systems. With a CVSS score of 10.0, it represents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While there is no indication of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability garnered some community discussion and media coverage at the time of its disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
<= 19.0.0.241CPE matchmatch criteria
cpe:2.3:a:adobe:air:*:*:*:*:*:*:*:*
<= 11.2.202.548CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
<= 18.0.0.261CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
19.0.0.185CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:19.0.0.185:*:*:*:*:*:*:*
19.0.0.207CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:19.0.0.207:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.79%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0579 is in the 87th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

adobepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5 SupplementaryFixed in: flash-plugin-0:11.2.202.554-1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: flash-plugin-0:11.2.202.554-1.el6_7
View patch

Vendor Advisories (1)

redhatCVE-2015-8403Critical

flash-plugin: multiple code execution issues fixed in APSB15-32

Dec 8, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-12/msg00007.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00008.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00012.html
helpx.adobe.com / security/products/flash-player/apsb15-32.html
PatchVendor Advisory
security.gentoo.org / glsa/201601-03
securityfocus.com / bid/78715
securitytracker.com / id/1034318