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CVE-2014-1518

INDEX BUILT · 2026-09-20

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Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and…

CVE-2014-15183 of 4 sources documented this
34

rank 34 = 2 + 22 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.06007  ·  without this subject the record ranks 32

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 12

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 34

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 24

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 34

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$300,000over 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

$300,000 = $4.99M incident cost x 1 exposure x 0.06007 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

0.06007EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementsteadyreceipt
PLATEAU10Minimal movement since 2022-02-04, 1638 days at 0.06, 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 privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · 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 24.5; firefox 29.0; seamonkey 2.26; thunderbird 24.5receipt
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, NVD8.8 HIGHreceipt
Exploit probability0.06007 · top 7% of all CVEsreceipt
Blast breadth12 products across 5 vendorsderived
Assigned bymozillareceipt
Recorded changes11 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMozilla firefox; Mozilla seamonkey; Mozilla thunderbird; and 9 morereceipt
Published rangesmozilla firefox < 29.0; mozilla firefox >= 24.0 < 24.5; mozilla seamonkey < 2.26; mozilla thunderbird < 24.5receipt
Show all 20 published ranges
mozilla firefox < 29.0
mozilla firefox >= 24.0 < 24.5
mozilla seamonkey < 2.26
mozilla thunderbird < 24.5
fedoraproject fedora 19
fedoraproject fedora 20
canonical ubuntu linux 12.04
canonical ubuntu linux 12.10
canonical ubuntu linux 13.10
canonical ubuntu linux 14.04
debian linux 7.0
debian linux 8.0
redhat enterprise linux desktop 5.0
redhat enterprise linux desktop 6.0
redhat enterprise linux eus 6.5
redhat enterprise linux server 5.0
redhat enterprise linux server 6.0
redhat enterprise linux server aus 6.5
redhat enterprise linux server eus 6.5
redhat enterprise linux server tus 6.5

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

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before 2.26 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
affected versions
mozilla firefox < 29.0; mozilla firefox >= 24.0 < 24.5; mozilla seamonkey < 2.26; and 17 more, listed in full below

check it yourself rhn.redhat.com securityfocus.com lists.fedoraproject.org lists.opensuse.org lists.opensuse.org lists.opensuse.org +14 morereceipt

Movement the material steps

4 Feb 20220.05857
7 Mar 20230.00828 · scoring model v2023.03.01
17 Mar 20250.01196 · scoring model v2025.03.14
15 Jun 20260.0598 · scoring model v2026.06.15
31 Jul 20260.06007
Show all 11 observations
4 Feb 20220.05857
7 Mar 20230.00828
7 Apr 20230.00625
28 Apr 20240.00814
17 Dec 20240.01430
17 Mar 20250.01196
29 Mar 20250.00783
30 Mar 20250.01196
18 Jul 20250.02818
15 Jun 20260.0598
31 Jul 20260.06007

11 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 0.06007Published2014-04-30Index as of2026-07-31

The record had been public for 12 years, 3 months when this index was last written.

Published 2014-04-30 receipt · Index as of 2026-07-31 derived

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