vciy

CVE-2014-1488

INDEX BUILT · 2026-09-20

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The Web workers implementation in Mozilla Firefox before 27.0 and SeaMonkey before 2.24 allows remote attackers to execute arbitrary code via vectors…

CVE-2014-14883 of 4 sources documented this
35

rank 35 = 2 + 25 + 0 + 8 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.07197  ·  without this subject the record ranks 33

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 10.0, from NVD  ·  without this subject the record ranks 10

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 35

How much of the world it touches

NVD CPE configurations

11 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 35

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$359,000over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$359,000 = $4.99M incident cost x 1 exposure x 0.07197 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

0.07197EPSSNOT IN KEVas of 2026-09-20
Severity10 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementfallenreceipt
PLATEAU10Minimal movement since 2022-02-04, 1638 days at 0.07, as of 2026-07-31. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

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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 authentication · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v2.0 · NVD's vectorreceipt
Weakness classNo CWE mapping in held sources.

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchfirefox 27.0; seamonkey 2.24receipt
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, NVD10 CRITICALreceipt
Exploit probability0.07197 · top 6% of all CVEsreceipt
Blast breadth8 products across 5 vendorsderived
Assigned bymozillareceipt
Recorded changes12 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMozilla firefox; Mozilla seamonkey; Canonical ubuntu linux; and 5 morereceipt
Published rangesmozilla firefox < 27.0; mozilla seamonkey < 2.24; canonical ubuntu linux 12.04; canonical ubuntu linux 12.10receipt
Show all 11 published ranges
mozilla firefox < 27.0
mozilla seamonkey < 2.24
canonical ubuntu linux 12.04
canonical ubuntu linux 12.10
canonical ubuntu linux 13.10
oracle solaris 11.3
opensuse 12.3
opensuse 13.1
suse linux enterprise desktop 11
suse linux enterprise server 11
suse linux enterprise software development kit 11

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

The Web workers implementation in Mozilla Firefox before 27.0 and SeaMonkey before 2.24 allows remote attackers to execute arbitrary code via vectors involving termination of a worker process that has performed a cross-thread object-passing operation in conjunction with use of asm.js. receipt

NVD's analysis a second authority

severity
10 AV:N/AC:L/Au:N/C:C/I:C/A:C
affected versions
mozilla firefox < 27.0; mozilla seamonkey < 2.24; canonical ubuntu linux 12.04; and 8 more, listed in full below

check it yourself securityfocus.com lists.opensuse.org securitytracker.com mozilla.org 8pecxstudios.com secunia.com +13 morereceipt

Dated events

2023-03-07EPSS moved 0.12 to 0.012026-06-15EPSS moved 0.01 to 0.07

Movement the material steps

4 Feb 20220.12248
7 Mar 20230.00617 · crossed 0.10 · scoring model v2023.03.01
17 Mar 20250.00871 · scoring model v2025.03.14
15 Jun 20260.07004 · scoring model v2026.06.15
31 Jul 20260.07197
Show all 12 observations
4 Feb 20220.12248
7 Mar 20230.00617
2 Aug 20230.00587
19 Dec 20230.00832
24 Aug 20240.01006
17 Dec 20240.01053
17 Mar 20250.00871
29 Mar 20250.03946
30 Mar 20250.00871
17 Jul 20250.01089
15 Jun 20260.07004
31 Jul 20260.07197

12 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 0.07197Published2014-02-06Index as of2026-07-31

The record had been public for 12 years, 5 months when this index was last written.

Published 2014-02-06 receipt · Index as of 2026-07-31 derived

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