vciy

CVE-2006-3880

INDEX BUILT · 2026-09-20

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Microsoft Windows NT 4.0, Windows 2000, Windows XP, and Windows Small Business Server 2003 allow remote attackers to cause a denial of service (IP…

CVE-2006-38803 of 4 sources documented this
28

rank 28 = 6 + 13 + 1 + 8 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.24741  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 5.0, from NVD  ·  without this subject the record ranks 15

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-10-01  ·  without this subject the record ranks 27

How much of the world it touches

NVD CPE configurations

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

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 28

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$353,000over the next 30 days, if this record is yours
Movement-$81,700on 2024-11-15, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$353,000 = $4.99M incident cost x 0.28625080150224425 exposure x 0.24741 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

0.24741EPSSNOT IN KEVas of 2026-09-20
Severity5 MEDIUMreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementsteadyreceipt
PLATEAU10Minimal movement since 2025-12-28, 204 days at 0.25, as of 2026-07-20. 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
ImpactPartial 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.

Fixed inNo fix version in held sources, as the index stood on 20 Jul 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, NVD5 MEDIUMreceipt
Exploit probability0.24741 · top 2% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes28 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMicrosoft windowsreceipt
Published rangesmicrosoft windows 2003 server datacenter_edition; microsoft windows 2003 server datacenter_edition_64-bit; microsoft windows 2003 server enterprise_64-bit; microsoft windows 2003 server enterprise_editionreceipt
Show all 10 published ranges
microsoft windows 2003 server datacenter_edition
microsoft windows 2003 server datacenter_edition_64-bit
microsoft windows 2003 server enterprise_64-bit
microsoft windows 2003 server enterprise_edition
microsoft windows 2003 server enterprise_edition_64-bit
microsoft windows 2003 server r2
microsoft windows 2003 server sp1
microsoft windows 2003 server standard
microsoft windows 2003 server standard_64-bit
microsoft windows 2003 server web

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 Windows NT 4.0, Windows 2000, Windows XP, and Windows Small Business Server 2003 allow remote attackers to cause a denial of service (IP stack hang) via a continuous stream of packets on TCP port 135 that have incorrect TCP header checksums and random numbers in certain TCP header fields, as demonstrated by the Achilles Windows Attack Tool. NOTE: the researcher reports that the Microsoft Security Response Center has stated "Our investigation which has included code review, review of the TCPDump, and attempts on reproing the issue on multiple fresh installs of various Windows Operating Systems have all resulted in non confirmation. receipt

NVD's analysis a second authority

severity
5 AV:N/AC:L/Au:N/C:N/I:N/A:P
affected versions
microsoft windows 2003 server datacenter_edition; microsoft windows 2003 server datacenter_edition_64-bit; microsoft windows 2003 server enterprise_64-bit; and 7 more, listed in full below

check it yourself securityfocus.com securityfocus.com securityreason.com receipt

Dated events

2023-03-07EPSS moved 0.21 to 0.082025-03-29EPSS moved 0.12 to 0.302026-06-15EPSS moved 0.18 to 0.24

Movement the material steps

4 Feb 20220.20999
7 Mar 20230.08197 · crossed 0.10 · scoring model v2023.03.01
30 May 20230.10867 · crossed 0.10
7 Jul 20230.09839 · crossed 0.10
21 Sep 20230.11744 · crossed 0.10
15 Nov 20240.08392 · crossed 0.10
17 Mar 20250.11546 · crossed 0.10 · scoring model v2025.03.14
29 Mar 20250.29686
30 Mar 20250.11981
15 Jun 20260.24156 · scoring model v2026.06.15
20 Jul 20260.24741
Show all 28 observations
4 Feb 20220.20999
7 Mar 20230.08197
15 Mar 20230.08031
22 Apr 20230.09028
30 May 20230.10867
7 Jul 20230.09839
21 Sep 20230.11744
19 Dec 20230.14115
15 Nov 20240.08392
17 Dec 20240.07394
17 Mar 20250.11546
19 Mar 20250.11981
29 Mar 20250.29686
30 Mar 20250.11981
2 Sep 20250.12023
15 Sep 20250.13425
1 Oct 20250.19945
23 Oct 20250.15628
27 Oct 20250.13425
28 Oct 20250.15628
27 Dec 20250.12965
28 Dec 20250.15628
8 Feb 20260.16614
24 Apr 20260.17729
15 Jun 20260.24156
20 Jun 20260.26055
24 Jun 20260.28197
20 Jul 20260.24741

28 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 0.24741Published2006-07-27Index as of2026-07-20

The record had been public for 19 years, 11 months when this index was last written.

Published 2006-07-27 receipt · Index as of 2026-07-20 derived

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What usually comes next

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