vciy

CVE-2009-0836

INDEX BUILT · 2026-09-20

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Foxit Reader 2.3 before Build 3902 and 3.0 before Build 1506, including 1120 and 1301, does not require user confirmation before performing dangerous…

CVE-2009-08363 of 4 sources documented this
39

rank 39 = 10 + 25 + 0 + 4 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.40857  ·  without this subject the record ranks 29

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 14

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 39

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 35

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 39

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.04Mover 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

$2.04M = $4.99M incident cost x 1 exposure x 0.40857 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

0.40857EPSSNOT IN KEVas of 2026-09-20
Severity10 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 14 days at 0.41, as of 2026-06-29. arc-rules@v1

Foresight · where to check next

CVE-2015-2546Citrix NetScalerMicrosoft WindowsMicrosoftCVE-2017-1000253Microsoft Office0836

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 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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Reachnetwork-reachable · no authentication · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v2.0 · NVD's vectorreceipt
Weakness classCWE-119 Improper Restriction of Operations within the Bounds of a Memory Bufferreceipt
Published consequencesCWE-119: Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands, Modify Memory; Availability, Confidentiality: Read Memory, DoS: Crash, Exit, or Restart, DoS: Resource…[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 29 Jun 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, NVD10 CRITICALreceipt
Exploit probability0.40857 · top 1% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes14 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesFoxitsoftware readerreceipt
Published rangesfoxitsoftware reader 2.3; foxitsoftware reader 3.0receipt

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

Foxit Reader 2.3 before Build 3902 and 3.0 before Build 1506, including 1120 and 1301, does not require user confirmation before performing dangerous actions defined in a PDF file, which allows remote attackers to execute arbitrary programs and have unspecified other impact via a crafted file, as demonstrated by the "Open/Execute a file" action. receipt

NVD's analysis a second authority

severity
10 AV:N/AC:L/Au:N/C:C/I:C/A:C
weakness
CWE-119
affected versions
foxitsoftware reader 2.3; foxitsoftware reader 3.0

check it yourself securityfocus.com secunia.com lists.immunitysec.com vupen.com securitytracker.com securityfocus.com +3 morereceipt

Dated events

2023-03-07EPSS moved 0.55 to 0.082026-06-15EPSS moved 0.11 to 0.39

Movement the material steps

4 Feb 20220.55346
7 Mar 20230.07579 · crossed 0.10 and 0.50 · scoring model v2023.03.01
17 Mar 20250.20215 · crossed 0.10 · scoring model v2025.03.14
15 Jun 20260.38645 · scoring model v2026.06.15
29 Jun 20260.40857

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 14 observations
4 Feb 20220.55346
7 Mar 20230.07579
29 Apr 20240.08029
3 Jun 20240.06735
16 Mar 20250.07241
17 Mar 20250.20215
29 Mar 20250.15933
30 Mar 20250.20215
15 Jun 20250.11643
15 Jul 20250.1077
16 Oct 20250.10451
17 Oct 20250.1077
15 Jun 20260.38645
29 Jun 20260.40857

14 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 0.40857Published2009-03-10Index as of2026-06-29

Exploit probability more than doubled between 2025-03-16 and 2025-03-17 (0.07241 → 0.20215) and the record had been public for 17 years, 3 months when this index was last written.

Published 2009-03-10 receipt · Index as of 2026-06-29 derived

The pattern, elsewhere

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2015-2546matches 4 of 6KEV listed · 2015receipt
CVE-2023-4966 · Citrix NetScaler ADCnothing comparable heldKEV listed · 2023receipt
CVE-2020-0796 · Microsoft Windows 10 Version 1903 for 32-bit…nothing comparable heldKEV listed · 2020receipt
CVE-2017-0101 · Microsoft Corporation Windowsnothing comparable heldKEV listed · 2017receipt
CVE-2017-1000253nothing comparable heldKEV listed · 2017receipt
CVE-2017-11882 · Microsoft Officenothing comparable heldKEV listed · 2017receipt

"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

14297 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.

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What usually comes next

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