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Enterprise Linux DesktopOperating system · Redhat

CVE-2018-12825

CRITICAL · 9.8 CVSS v3.0 Published 2018-08-29
Fix available
A fix is available. Upgrade to after 30.0.0.154 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Adobe Flash Player 30.0.0.134 and earlier have a security bypass vulnerability. Successful exploitation could lead to security mitigation bypass.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Enterprise Linux DesktopOperating system
Affected:= 6.0
Enterprise Linux ServerOperating system
Affected:= 6.0
Enterprise Linux WorkstationOperating system
Affected:= 6.0
Flash PlayerApplication
Affected:<= 30.0.0.154

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 30.0.0.154
Vendor patch helpx.adobe.com →
Recommended fix High confidence

N/A - Adobe Flash Player is end-of-life; removal is the only secure option

  1. Adobe Flash Player reached end-of-life on December 31, 2020. The official fix path is no longer viable as Adobe no longer provides security updates for Flash Player.
  2. Remove Adobe Flash Player from all systems: On Windows, use Add/Remove Programs to uninstall Flash Player. On Linux, remove the flash-player package using the system package manager (e.g., yum remove flash-plugin or apt remove flashplayer).
  3. Remove Flash Player browser plugins from all browsers (Chrome, Firefox, Edge, etc.).
  4. Verify removal is complete by attempting to access any Flash content - it should no longer load.
  5. Consider deploying additional compensating controls such as network-level blocking of Flash content and browser-based application controls to prevent Flash execution.
Caveat Removal will break any legacy internal applications still dependent on Flash Player. Consider migrating those applications to modern web technologies.

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-12825 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data