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CVE-2019-12258

INDEX BUILT · 2026-09-20

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Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component

CVE-2019-122583 of 4 sources documented this
36

rank 36 = 6 + 19 + 1 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.23354  ·  without this subject the record ranks 30

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, 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 2025-09-16  ·  without this subject the record ranks 35

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 26

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 36

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$713,000over the next 30 days, if this record is yours
Movement-$170,000on 2026-05-31, the last material move, 15 days before this reading
Basisassumeda published average, not your estate

$713,000 = $4.99M incident cost x 0.6121449559255632 exposure x 0.23354 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

0.23354EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.13503 to 0.23354 across 31 observations. 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

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-384 Session Fixationreceipt
Published consequencesCWE-384: Access Control: Gain Privileges or Assume Identity[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchvxworks 6.9.4.12; siprotec 7.59receipt
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, NVD7.5 HIGHreceipt
Exploit probability0.23354 · top 2% of all CVEsreceipt
Blast breadth4 products across 4 vendorsderived
Assigned bymitrereceipt
Recorded changes31 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesWindriver vxworks; Sonicwall sonicos; Siemens siprotec; and 1 morereceipt
Published rangeswindriver vxworks >= 6.5 < 6.9.4.12; windriver vxworks 7.0; sonicwall sonicos >= 5.9.0.0 <= 5.9.0.7; sonicwall sonicos >= 5.9.1.0. <= 5.9.1.12receipt
Show all 20 published ranges
windriver vxworks >= 6.5 < 6.9.4.12
windriver vxworks 7.0
sonicwall sonicos >= 5.9.0.0 <= 5.9.0.7
sonicwall sonicos >= 5.9.1.0. <= 5.9.1.12
sonicwall sonicos >= 6.2.0.0 <= 6.2.3.1
sonicwall sonicos >= 6.2.4.0 <= 6.2.4.3
sonicwall sonicos >= 6.2.5.0 <= 6.2.5.3
sonicwall sonicos >= 6.2.6.0 <= 6.2.6.1
sonicwall sonicos >= 6.2.7.0 <= 6.2.7.4
sonicwall sonicos >= 6.2.9.0 <= 6.2.9.2
sonicwall sonicos >= 6.5.0.0 <= 6.5.0.3
sonicwall sonicos >= 6.5.1.0 <= 6.5.1.4
sonicwall sonicos >= 6.5.2.0 <= 6.5.2.3
sonicwall sonicos >= 6.5.3.0 <= 6.5.3.3
sonicwall sonicos >= 6.5.4.0. <= 6.5.4.3
sonicwall sonicos 6.2.7.0
sonicwall sonicos 6.2.7.1
sonicwall sonicos 6.2.7.7
siemens siprotec 5 firmware < 7.59
netapp e-series santricity os controller >= 8.00 <= 8.40.50.00

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

Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
weakness
CWE-384
affected versions
windriver vxworks >= 6.5 < 6.9.4.12; windriver vxworks 7.0; sonicwall sonicos >= 5.9.0.0 <= 5.9.0.7; and 17 more, listed in full below

check it yourself support2.windriver.com psirt.global.sonicwall.com cert-portal.siemens.com security.netapp.com windriver.com support2.windriver.com +3 morereceipt

Dated events

2022-01-06EPSS moved 0.14 to 0.412023-03-07EPSS moved 0.76 to 0.042026-06-15EPSS moved 0.06 to 0.23

Movement the material steps

14 Apr 20210.13503
6 Jan 20220.41192
4 Feb 20220.87322 · crossed 0.50
1 Apr 20220.76366
7 Mar 20230.03536 · crossed 0.10 and 0.50 · scoring model v2023.03.01
17 Dec 20240.31500 · crossed 0.10
17 Mar 20250.11641 · scoring model v2025.03.14
29 Mar 20250.23974
30 Mar 20250.11641
4 Nov 20250.07932 · crossed 0.10
17 Jan 20260.11641 · crossed 0.10
31 May 20260.05895 · crossed 0.10
15 Jun 20260.23354 · crossed 0.10 · scoring model v2026.06.15
Show all 31 observations
14 Apr 20210.13503
6 Jan 20220.41192
4 Feb 20220.87322
11 Feb 20220.84884
1 Apr 20220.76366
7 Mar 20230.03536
13 Jun 20230.04788
30 Jun 20230.06382
3 Dec 20230.06302
29 May 20240.08655
14 Jun 20240.07849
18 Jul 20240.07417
2 Aug 20240.08856
17 Dec 20240.31500
30 Dec 20240.31238
8 Feb 20250.38537
17 Mar 20250.11641
29 Mar 20250.23974
30 Mar 20250.11641
15 May 20250.14881
16 Jun 20250.15025
16 Sep 20250.18958
18 Sep 20250.14881
15 Oct 20250.15025
4 Nov 20250.07932
18 Nov 20250.09563
21 Nov 20250.07932
17 Jan 20260.11641
25 May 20260.1145
31 May 20260.05895
15 Jun 20260.23354

31 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 0.23354Published2019-08-09Index as of2026-06-15

The record had been public for 6 years, 10 months when this index was last written.

Published 2019-08-09 receipt · Index as of 2026-06-15 derived

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