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CVE-2018-12827

INDEX BUILT · 2026-09-20

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Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability

CVE-2018-128274 of 4 sources documented this
32

rank 32 = 8 + 19 + 0 + 5 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.32032  ·  without this subject the record ranks 24

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from NVD  ·  without this subject the record ranks 13

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 32

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 27

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 32

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$978,000over the next 30 days, if this record is yours
Movement-$536,000on 2025-11-21, the last material move, 9 months before this reading
Basisassumeda published average, not your estate

$978,000 = $4.99M incident cost x 0.6121449559255632 exposure x 0.32032 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.32032EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 83 days at 0.32, as of 2026-09-06. arc-rules@v1

Foresight · where to check next

CVE-2014-0160Apple macOSApple SafariCVE-2016-4523ESXiMicrosoft Windows12827

This record is one instance of CWE-125, out-of-bounds read. The index holds 9767 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running Adobe Flash Player 30.0.0.134 and earlier? Check your version

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality lossreceipt
Scored fromCVSS v3.0 · NVD's vectorreceipt
Weakness classCWE-125 Out-of-bounds Readreceipt
Published consequencesCWE-125: Confidentiality: Read Memory; Confidentiality: Bypass Protection Mechanism; Availability: DoS: Crash, Exit, or Restart; Other: Varies by Context[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 6 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD7.5 HIGHreceipt
Exploit probability0.32032 · top 2% of all CVEsreceipt
Blast breadth4 products across 2 vendorsderived
Assigned byadobereceipt
Recorded changes35 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productAdobe Flash Player 30.0.0.134 and earlierreceipt
Published rangesadobe flash player <= 30.0.0.154; redhat enterprise linux desktop 6.0; redhat enterprise linux server 6.0; redhat enterprise linux workstation 6.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
weakness
CWE-125
affected versions
adobe flash player <= 30.0.0.154; redhat enterprise linux desktop 6.0; redhat enterprise linux server 6.0; and 1 more, listed in full below

check it yourself securityfocus.com exploit-db.com access.redhat.com securitytracker.com helpx.adobe.com receipt

Dated events

2022-02-04EPSS moved 0.21 to 0.112025-03-17EPSS moved 0.02 to 0.322026-09-06EPSS moved 0.25 to 0.32

Movement the material steps

14 Apr 20210.20882
7 Mar 20230.05622 · crossed 0.10 · scoring model v2023.03.01
17 Mar 20250.31851 · crossed 0.10 · scoring model v2025.03.14
29 Mar 20250.48219
30 Mar 20250.32908
16 Sep 20250.22712
29 Sep 20250.08652 · crossed 0.10
18 Nov 20250.2619 · crossed 0.10
21 Nov 20250.08652 · crossed 0.10
15 Jun 20260.32032 · crossed 0.10 · scoring model v2026.06.15
6 Sep 20260.32032
Show all 35 observations
14 Apr 20210.20882
4 Feb 20220.11242
7 Mar 20230.05622
26 Apr 20230.06926
8 May 20230.06314
19 Jun 20230.05846
21 Jul 20230.04514
8 Aug 20230.03873
23 Aug 20230.03783
10 Sep 20230.03127
27 Sep 20230.03271
21 Nov 20230.03320
8 Dec 20230.01850
20 Jan 20240.01778
17 Apr 20240.01241
8 Aug 20240.01285
24 Oct 20240.01675
17 Dec 20240.01585
17 Mar 20250.31851
25 Mar 20250.32908
29 Mar 20250.48219
30 Mar 20250.32908
24 May 20250.30532
14 Jun 20250.30156
30 Jul 20250.26767
16 Sep 20250.22712
29 Sep 20250.08652
18 Nov 20250.2619
21 Nov 20250.08652
15 Mar 20260.08256
15 Jun 20260.32032
23 Aug 20260.24524
30 Aug 20260.32032
5 Sep 20260.24524
6 Sep 20260.32032

35 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.32032Published2018-08-29Index as of2026-09-06

The record had been public for 8 years when this index was last written.

Published 2018-08-29 receipt · Index as of 2026-09-06 derived

The pattern, elsewhere

This record is one instance of CWE-125, out-of-bounds read. The index holds 9767 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2014-0160matches 8 of 8KEV listed · 2014receipt
CVE-2023-28204 · Apple macOSmatches 7 of 9KEV listed · 2023receipt
CVE-2023-42916 · Apple Safarimatches 7 of 9KEV listed · 2023receipt
CVE-2016-4523matches 6 of 8KEV listed · 2016receipt
CVE-2025-22226 · ESXimatches 6 of 9KEV listed · 2025receipt
CVE-2025-24991 · Microsoft Windows 10 Version 1507matches 6 of 9KEV listed · 2025receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

9767 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

adobe flash player

Of the 3 records in this family that state one, this holds the highest EPSS percentile: 0.98189.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.