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CVE-2007-5344

INDEX BUILT · 2026-09-20

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Microsoft Internet Explorer 5.01 through 7 allows remote attackers to execute arbitrary code via a crafted website using Javascript that creates…

CVE-2007-53443 of 4 sources documented this
34

rank 34 = 7 + 17 + 1 + 9 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.27483  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.8, from NVD  ·  without this subject the record ranks 17

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-03-02  ·  without this subject the record ranks 33

How much of the world it touches

NVD CPE configurations

17 products in the CPE ranges  ·  without this subject the record ranks 25

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$884,000over the next 30 days, if this record is yours
Movement-$53,300on 2023-07-27, the last material move, 2 years, 10 months before this reading
Basisassumeda published average, not your estate

$884,000 = $4.99M incident cost x 0.6442432101309884 exposure x 0.27483 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

0.27483EPSSNOT IN KEVas of 2026-09-20
Severity6.8 MEDIUMreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2025-03-17, 455 days at 0.27, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

SonicWall SMA1000langflow-aiMicrosoftRejetto HTTP FileCitrix NetScaler5344

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 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 signal

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no authenticationreceipt
ImpactPartial confidentiality, integrity and availability lossreceipt
Scored fromCVSS v2.0 · NVD's vectorreceipt
Weakness classCWE-94 Improper Control of Generation of Code ('Code Injection')receipt
Published consequencesCWE-94: Access Control: Bypass Protection Mechanism; Access Control: Gain Privileges or Assume Identity; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands…[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 15 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, NVD6.8 MEDIUMreceipt
Exploit probability0.27483 · top 2% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes25 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMicrosoft internet explorer; Microsoft iereceipt
Published rangesmicrosoft ie 5.x; microsoft ie 6.0; microsoft internet explorer 5; microsoft internet explorer 5.01receipt
Show all 17 published ranges
microsoft ie 5.x
microsoft ie 6.0
microsoft internet explorer 5
microsoft internet explorer 5.01
microsoft internet explorer 5.1
microsoft internet explorer 5.2.3
microsoft internet explorer 5.5
microsoft internet explorer 6
microsoft internet explorer 6.0
microsoft internet explorer 6.0.2600
microsoft internet explorer 6.0.2800
microsoft internet explorer 6.0.2800.1106
microsoft internet explorer 6.0.2900
microsoft internet explorer 6.0.2900.2180
microsoft internet explorer 7
microsoft internet explorer 7.0
microsoft internet explorer 7.0.5730.11

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

Microsoft Internet Explorer 5.01 through 7 allows remote attackers to execute arbitrary code via a crafted website using Javascript that creates, modifies, deletes, and accesses document objects using the tags property, which triggers heap corruption, related to uninitialized or deleted objects, a different issue than CVE-2007-3902 and CVE-2007-3903, and a variant of "Uninitialized Memory Corruption Vulnerability." receipt

NVD's analysis a second authority

severity
6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
weakness
CWE-94
affected versions
microsoft ie 5.x; microsoft ie 6.0; microsoft internet explorer 5; and 14 more, listed in full below

check it yourself exchange.xforce.ibmcloud.com securityfocus.com securitytracker.com securityfocus.com secunia.com securityfocus.com +5 morereceipt

Dated events

2023-03-07EPSS moved 0.44 to 0.962025-03-17EPSS moved 0.89 to 0.342026-06-15EPSS moved 0.20 to 0.27

Movement the material steps

4 Feb 20220.43683
7 Mar 20230.95517 · crossed 0.50 and 0.90 · scoring model v2023.03.01
27 Jul 20230.89794 · crossed 0.90
7 Oct 20230.77280
30 Dec 20240.88942
17 Mar 20250.33806 · crossed 0.50 · scoring model v2025.03.14
25 Jun 20250.23322
15 Jun 20260.27483 · scoring model v2026.06.15
Show all 25 observations
4 Feb 20220.43683
7 Mar 20230.95517
9 Apr 20230.95103
16 May 20230.94695
21 Jun 20230.91452
27 Jul 20230.89794
1 Sep 20230.82675
7 Oct 20230.77280
11 Nov 20230.80452
15 May 20240.82182
23 Jun 20240.85166
7 Sep 20240.85025
15 Oct 20240.85699
17 Dec 20240.86589
30 Dec 20240.88942
17 Mar 20250.33806
29 Mar 20250.30228
30 Mar 20250.33806
7 May 20250.27919
25 Jun 20250.23322
18 Nov 20250.20763
2 Mar 20260.2787
25 Mar 20260.26539
8 Apr 20260.19593
15 Jun 20260.27483

25 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 0.27483Published2007-12-12Index as of2026-06-15

The record had been public for 18 years, 6 months when this index was last written.

Published 2007-12-12 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-15410 · SonicWall SMA1000nothing comparable heldKEV listed · 2026receipt
CVE-2025-3248 · langflow-ai langflownothing comparable heldKEV listed · 2025receipt
CVE-2025-49704 · Microsoft SharePoint Enterprise Server 2016nothing comparable heldKEV listed · 2025receipt
CVE-2024-23692 · Rejetto HTTP File Servernothing comparable heldKEV listed · 2024receipt
CVE-2023-24955 · Microsoft SharePoint Enterprise Server 2016nothing comparable heldKEV listed · 2023receipt
CVE-2023-3519 · Citrix NetScaler ADCnothing comparable heldKEV listed · 2023receipt

"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

7185 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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