CVE-2018-12827Flash Player Out-of-Bounds Read
Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability.
Published Aug 29, 2018 · Updated Mar 5, 2026 · Also known as UBUNTU-CVE-2018-12827
Key Facts
Patch immediately- CVE-2018-12827 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Flash Player (Adobe), Enterprise Linux Desktop (Redhat), Enterprise Linux Server (Redhat) and 4 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 32% probability of exploitation in the next 30 days.
- Fixed versions are available, including Flash Player <=30.0.0.154, flash-plugin 0:30.0.0.154-1.el6_10, flashplugin-nonfree 30.0.0.154ubuntu0.14.04.1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
32%
Higher than 98.2% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
46/100
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-2018-12827
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2018-12827
- advisoryRHSA-2018:2435
- advisoryhttps://rhn.redhat.com/errata/RHSA-2018-2435.html
- advisory105066
- advisory1041448
Description
Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Flash PlayerAdobe | See advisory | 30.0.0.154 |
| Enterprise Linux DesktopRedhat | 6.0 | n/a |
| Enterprise Linux ServerRedhat | 6.0 | n/a |
| Enterprise Linux WorkstationRedhat | 6.0 | n/a |
| flashplugin-nonfreeubuntu | See advisory | 30.0.0.154ubuntu0.14.04.1 |
Patched Releases
Flash Player
<=30.0.0.154
flash-plugin
0:30.0.0.154-1.el6_10
flashplugin-nonfree
30.0.0.154ubuntu0.14.04.1, 30.0.0.154ubuntu0.16.04.1, 30.0.0.154ubuntu0.18.04.1
Timeline
Publicly disclosed
Aug 29, 2018
Last updated
Mar 5, 2026
Weakness Type
- CWE-125 Out-of-bounds Read
References
- advisoryubuntu.com · CVE-2018-12827
- advisorycve.org · CVERecord
- advisoryRHSA-2018:2435
- advisoryrhn.redhat.com · RHSA-2018-2435.html
- advisory105066
FAQ
Common Questions.
Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability.
Affected: Flash Player (Adobe); Enterprise Linux Desktop (Redhat) versions 6.0; Enterprise Linux Server (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 <=30.0.0.154, flash-plugin 0:30.0.0.154-1.el6_10, flashplugin-nonfree 30.0.0.154ubuntu0.14.04.1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2018-12827 On Your Attack Surface?
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