vciy

CVE-2018-15982

INDEX BUILT · 2026-09-20

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Flash Player versions 31.0.0.153 and earlier, and 31.0.0.108 and earlier have a use after free vulnerability

CVE-2018-159823 of 4 sources documented this
73

rank 73 = 40 + 20 + 1 + 6 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.89146 · CISA KEV listed  ·  without this subject the record ranks 33

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from NVD  ·  without this subject the record ranks 53

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-09-09  ·  without this subject the record ranks 72

How much of the world it touches

NVD CPE configurations

5 products in the CPE ranges  ·  without this subject the record ranks 67

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 67

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.45Mover the next 30 days, if this record is yours
Movement+$2.78Mon 2022-02-04, the last material move, 4 years, 7 months before this reading
Basisassumeda published average, not your estate

$4.45M = $4.99M incident cost x 1 exposure x 0.89146 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

0.89146EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal loss · ransomware-linkedreceipt
Exploitationransomware use knownreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2022-02-04, 1678 days at 0.89, as of 2026-09-09. arc-rules@v1

Foresight · where to check next

Adobe FlashCVE-2013-2551Google ChromeApple macOSMicrosoft Windows15982

This record is one instance of CWE-416, use after free. The index holds 8700 prior instances of this class, 105 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

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Harm, if it fires from the vector and the weakness

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Reachneeds local access · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-416 Use After Freereceipt
Published consequencesCWE-416: Integrity: Modify Memory; Availability: DoS: Crash, Exit, or Restart; Confidentiality: Read Memory; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands[email protected]
Ransomware campaign useKnown (CISA)receipt

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 9 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.
CISA remediation statusoverdue since 2022-08-15receipt
CISA required actionThe impacted product is end-of-life and should be disconnected if still in use.receipt
Published to CISA KEV1124 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Ransomware campaign use known, 2022-02-15.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 8 public repositories2018-12-05receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2022-02-15receipt
  • RUNG 4Ransomware campaign use known2022-02-15receipt

Authority who says so

CVSS, NVD7.8 HIGHreceipt
Exploit probability0.89146 · top 0.23% of all CVEsreceipt
Blast breadth5 products across 2 vendorsderived
Assigned byadobereceipt
Recorded changes55 · last 17 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesAdobe flash player; Redhat enterprise linux desktop; Redhat enterprise linux server; and 2 morereceipt
Published rangesadobe flash player <= 31.0.0.153; redhat enterprise linux desktop 6.0; redhat enterprise linux server 6.0; redhat enterprise linux workstation 6.0receipt
Show all 5 published ranges
adobe flash player <= 31.0.0.153
redhat enterprise linux desktop 6.0
redhat enterprise linux server 6.0
redhat enterprise linux workstation 6.0
adobe flash player installer <= 31.0.0.108

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

Flash Player versions 31.0.0.153 and earlier, and 31.0.0.108 and earlier have a use after free vulnerability. Successful exploitation could lead to arbitrary code execution. receipt

NVD's analysis a second authority

severity
7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
weakness
CWE-416
affected versions
adobe flash player <= 31.0.0.153; redhat enterprise linux desktop 6.0; redhat enterprise linux server 6.0; and 2 more, listed in full below
also scored by
7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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

Dated events

2022-02-04EPSS moved 0.28 to 0.842022-02-15Added to CISA KEV2022-08-15CISA remediation due2026-09-09EPSS moved 0.82 to 0.89

Movement the material steps

14 Apr 20210.27907
4 Feb 20220.83578 · crossed 0.50
7 Mar 20230.97469 · crossed 0.90 · scoring model v2023.03.01
17 Mar 20250.93132 · scoring model v2025.03.14
15 Jun 20260.81844 · crossed 0.90 · scoring model v2026.06.15
9 Sep 20260.89146
Show all 41 observations
14 Apr 20210.27907
4 Feb 20220.83578
7 Mar 20230.97469
15 Mar 20230.97465
14 May 20230.97462
1 Jul 20230.97430
14 Aug 20230.97420
4 Sep 20230.97325
5 Sep 20230.97420
10 Dec 20230.97418
19 May 20240.97405
10 Jun 20240.97376
20 Jul 20240.97382
6 Sep 20240.97341
3 Oct 20240.97391
2 Nov 20240.97265
27 Nov 20240.97191
17 Dec 20240.96987
28 Dec 20240.97062
2 Feb 20250.97089
17 Mar 20250.93132
23 Apr 20250.93341
21 Aug 20250.93284
16 Sep 20250.93426
23 Oct 20250.93419
27 Oct 20250.93469
3 Nov 20250.93454
17 Nov 20250.93565
19 Nov 20250.93519
23 Dec 20250.93565
28 Dec 20250.93817
29 Jan 20260.93798
6 Feb 20260.93762
12 Mar 20260.93798
17 Mar 20260.93686
18 Mar 20260.93605
15 Jun 20260.81844
4 Jul 20260.81971
23 Jul 20260.82456
8 Sep 20260.81971
9 Sep 20260.89146

41 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 0.89146Public PoC2018-12-05Published2019-01-18CISA KEV2022-02-15Index as of2026-09-09

Listed by CISA 1124 days after it published and the record had been public for 7 years, 7 months when this index was last written.

Public PoC 2018-12-05 receipt · Published 2019-01-18 receipt · CISA KEV 2022-02-15 receipt · Index as of 2026-09-09 derived

The pattern, elsewhere

This record is one instance of CWE-416, use after free. The index holds 8700 prior instances of this class, 105 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2018-4878 · Adobe Flash Player before 28.0.0.161matches 8 of 8KEV listed · 2018receipt
CVE-2013-2551matches 7 of 8KEV listed · 2013receipt
CVE-2026-2441 · Google Chromematches 7 of 8KEV listed · 2026receipt
CVE-2026-5281 · Google Chromematches 7 of 8KEV listed · 2026receipt
CVE-2023-43000 · Apple macOSmatches 7 of 8KEV listed · 2025receipt
CVE-2025-29824 · Microsoft Windows 10 Version 1507matches 6 of 8KEV 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

8700 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

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