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CVE-2018-4933

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read...

6.5 MediumFix available

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

4.06%Down 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Record
CVE-2018-4933
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Record
CVE-2018-4933
Updated
2026-11-02
EUVDEUVD-2018-16718 No score

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Record
EUVD-2018-16718
Updated
2026-11-03
GitHub AdvisoriesGHSA-pfhj-qj49-rfqg 6.5

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read...

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Record
GHSA-pfhj-qj49-rfqg
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
OSVRHSA-2018:1119 8.8

Red Hat Security Advisory: flash-plugin security update

Record
RHSA-2018:1119
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-4933 6.5

Adobe Flash Player versions 29.0.0.113 and earlier have an exploitable out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Record
UBUNTU-CVE-2018-4933
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
flash-plugin
Red Hat:rhel_extras:6
before 0:29.0.0.140-1.el6_9
0:29.0.0.140-1.el6_9
flashplugin-nonfree
Ubuntu:14.04:LTS
before 29.0.0.140ubuntu0.14.04.1, plus listed versions
11.2.202.310ubuntu111.2.202.327ubuntu0.13.10.111.2.202.332ubuntu111.2.202.335ubuntu111.2.202.336ubuntu1
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11.2.202.341ubuntu111.2.202.346ubuntu111.2.202.350ubuntu111.2.202.356ubuntu0.14.04.111.2.202.359ubuntu0.14.04.111.2.202.378ubuntu0.14.04.111.2.202.394ubuntu0.14.04.111.2.202.400ubuntu0.14.04.111.2.202.406ubuntu0.14.04.111.2.202.406ubuntu0.14.04.211.2.202.411ubuntu0.14.04.111.2.202.418ubuntu0.14.04.111.2.202.424ubuntu0.14.04.111.2.202.425ubuntu0.14.04.111.2.202.429ubuntu0.14.04.111.2.202.438ubuntu0.14.04.111.2.202.440ubuntu0.14.04.111.2.202.442ubuntu0.14.04.111.2.202.451ubuntu0.14.04.111.2.202.457ubuntu0.14.04.111.2.202.460ubuntu0.14.04.111.2.202.466ubuntu0.14.04.111.2.202.468ubuntu0.14.04.111.2.202.481ubuntu0.14.04.111.2.202.481ubuntu0.14.04.211.2.202.491ubuntu0.14.04.111.2.202.508ubuntu0.14.04.111.2.202.521ubuntu0.14.04.111.2.202.535ubuntu0.14.04.111.2.202.540ubuntu0.14.04.211.2.202.548ubuntu0.14.04.111.2.202.554ubuntu0.14.04.111.2.202.559ubuntu0.14.04.111.2.202.569ubuntu0.14.04.111.2.202.577ubuntu0.14.04.111.2.202.616ubuntu0.14.04.111.2.202.621ubuntu0.14.04.111.2.202.626ubuntu0.14.04.111.2.202.632ubuntu0.14.04.111.2.202.635ubuntu0.14.04.111.2.202.637ubuntu0.14.04.111.2.202.643ubuntu0.14.04.111.2.202.644ubuntu0.14.04.124.0.0.186ubuntu0.14.04.124.0.0.194ubuntu0.14.04.1
29.0.0.140ubuntu0.14.04.1
flashplugin-nonfree
Ubuntu:16.04:LTS
before 29.0.0.140ubuntu0.16.04.1, plus listed versions
11.2.202.540ubuntu211.2.202.548ubuntu111.2.202.554ubuntu111.2.202.559ubuntu111.2.202.569ubuntu1
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11.2.202.577ubuntu111.2.202.616ubuntu111.2.202.621ubuntu0.16.04.111.2.202.626ubuntu0.16.04.111.2.202.632ubuntu0.16.04.111.2.202.635ubuntu0.16.04.111.2.202.637ubuntu0.16.04.111.2.202.643ubuntu0.16.04.111.2.202.644ubuntu0.16.04.124.0.0.186ubuntu0.16.04.124.0.0.194ubuntu0.16.04.124.0.0.221ubuntu0.16.04.125.0.0.127ubuntu0.16.04.125.0.0.148ubuntu0.16.04.125.0.0.171ubuntu0.16.04.126.0.0.126ubuntu0.16.04.126.0.0.131ubuntu0.16.04.126.0.0.137ubuntu0.16.04.126.0.0.151ubuntu0.16.04.127.0.0.130ubuntu0.16.04.127.0.0.159ubuntu0.16.04.127.0.0.170ubuntu0.16.04.127.0.0.183ubuntu0.16.04.127.0.0.187ubuntu0.16.04.128.0.0.126ubuntu0.16.04.128.0.0.137ubuntu0.16.04.128.0.0.161ubuntu0.16.04.129.0.0.113ubuntu0.16.04.1
29.0.0.140ubuntu0.16.04.1
flashplugin-nonfree
Ubuntu:18.04:LTS
before 29.0.0.140ubuntu1, plus listed versions
27.0.0.170ubuntu127.0.0.187ubuntu128.0.0.126ubuntu128.0.0.137ubuntu128.0.0.161ubuntu128.0.0.161ubuntu228.0.0.161ubuntu329.0.0.113ubuntu1
29.0.0.140ubuntu1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-4933 is a medium vulnerability (CVSS 6.5) in Adobe Flash Player, published May 19, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.06%, the 90th percentile. Fixed in flash-plugin 0:29.0.0.140-1.el6_9.

References

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Left out here: 17 versions. The JSON record has them.

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