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CVE-2015-8821

28
FAUCET Score

CVE-2015-8821 describes a use-after-free vulnerability in Adobe Flash Player, Adobe AIR, and related SDKs across Windows, OS X, and Linux platforms. This flaw allows attackers to execute arbitrary code by crafting malicious MPEG-4 data. With a CVSS score of 8.8 (HIGH), this vulnerability has a network attack vector, low attack complexity, and can lead to high impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.2.202.548CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
<= 19.0.0.245CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*
<= 18.0.0.261CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:esr:*:*:*
<= 19.0.0.245CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*
<= 19.0.0.245CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.66%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0766 is in the 94th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 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-2015-8821Critical

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

Dec 8, 2015

References

helpx.adobe.com / security/products/flash-player/apsb15-32.html
PatchVendor Advisory
securityfocus.com / bid/84162
Broken LinkThird Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-15-663
Third Party AdvisoryVDB Entry