CVE-2017-3106Flash Player Type Confusion
flash-plugin: Remote Code Execution due to Type Confusion issue fixed in APSB17-23
Published Aug 8, 2017 · Updated Jul 16, 2025 · Also known as UBUNTU-CVE-2017-3106
Key Facts
Patch immediately- CVE-2017-3106 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Flash Player (Adobe), Flash Player Desktop Runtime (Adobe), Enterprise Linux (Redhat) and 4 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 22% probability of exploitation in the next 30 days.
- Fixed versions are available, including Flash Player 26.0.0.137, Flash Player Desktop Runtime 26.0.0.137, flash-plugin 0:26.0.0.151-1.el6_9.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
22%
Higher than 97.6% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
44/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://ubuntu.com/security/CVE-2017-3106
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2017-3106
- advisoryRHSA-2017:2457
- advisoryhttps://rhn.redhat.com/errata/RHSA-2017-2457.html
- advisoryGLSA-201709-16
- advisory100190
Description
Adobe Flash Player versions 26.0.0.137 and earlier have an exploitable type confusion vulnerability when parsing SWF files. Successful exploitation could lead to arbitrary code execution.
Affected Products
11 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Flash PlayerAdobe | >= 26.0.0.137 and earlier. | 26.0.0.137 |
| Flash Player Desktop RuntimeAdobe | See advisory | 26.0.0.137 |
| Enterprise LinuxRedhat | 6.0 | n/a |
| Enterprise Linux DesktopRedhat | 6.0 | n/a |
| Enterprise Linux WorkstationRedhat | 6.0 | n/a |
Patched Releases
Flash Player
26.0.0.137
Flash Player Desktop Runtime
26.0.0.137
flash-plugin
0:26.0.0.151-1.el6_9
flashplugin-nonfree
26.0.0.151ubuntu0.14.04.1, 26.0.0.151ubuntu0.16.04.1
Timeline
Publicly disclosed
Aug 8, 2017
Last updated
Jul 16, 2025
Weakness Type
- CWE-704 Incorrect Type Conversion or Cast
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
References
- advisoryubuntu.com · CVE-2017-3106
- advisorycve.org · CVERecord
- advisoryRHSA-2017:2457
- advisoryrhn.redhat.com · RHSA-2017-2457.html
- advisoryGLSA-201709-16
FAQ
Common Questions.
Adobe Flash Player versions 26.0.0.137 and earlier have an exploitable type confusion vulnerability when parsing SWF files.
Affected: Flash Player (Adobe) versions >= 26.0.0.137 and earlier.; Flash Player Desktop Runtime (Adobe); Enterprise Linux (Redhat) versions 6.0, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Flash Player 26.0.0.137, Flash Player Desktop Runtime 26.0.0.137, flash-plugin 0:26.0.0.151-1.el6_9.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2017-3106 On Your Attack Surface?
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