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CVE-2019-1937

INDEX BUILT · 2026-09-20

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Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability

CVE-2019-19374 of 4 sources documented this
50

rank 50 = 19 + 25 + 0 + 6 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.75863  ·  without this subject the record ranks 31

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 25

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 50

How much of the world it touches

NVD CPE configurations

6 products in the CPE ranges  ·  without this subject the record ranks 44

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 50

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$3.79Mover the next 30 days, if this record is yours
Movement+$515,000on 2025-11-21, the last material move, 6 months before this reading
Basisassumeda published average, not your estate

$3.79M = $4.99M incident cost x 1 exposure x 0.75863 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

0.75863EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.11097 to 0.75863 across 31 observations. arc-rules@v1

Foresight · where to check next

CVE-2023-28461SonicWall SonicOSConcurrentFortinet FortiOS,Fortinet FortiOSCisco Catalyst1937

This record is one instance of CWE-287, improper authentication. The index holds 4979 prior instances of this class, 49 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 privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.0 · the CNA's vectorreceipt
Weakness classCWE-287 Improper Authenticationreceipt
Published consequencesCWE-287: Integrity, Confidentiality, Availability, Access Control: Read Application Data, Gain Privileges or Assume Identity, 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 in6.7.3.0receipt
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, the CNA9.8 CRITICALreceipt
CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.75863 · top 0.50% of all CVEsreceipt
Blast breadth3 products across 1 vendorderived
Assigned byciscoreceipt
Recorded changes31 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productCisco Unified Computing System Directorreceipt
Published rangescisco integrated management controller supervisor >= 2.2.0.3 <= 2.2.0.6; cisco ucs director >= 6.6.0.0 <= 6.6.1.0; cisco ucs director >= 6.7.0.0 <= 6.7.1.0; cisco ucs director 6.7\(0.0.67265\)receipt
Show all 6 published ranges
cisco integrated management controller supervisor >= 2.2.0.3 <= 2.2.0.6
cisco ucs director >= 6.6.0.0 <= 6.6.1.0
cisco ucs director >= 6.7.0.0 <= 6.7.1.0
cisco ucs director 6.7\(0.0.67265\)
cisco ucs director express for big data >= 3.7.0.0 <= 3.7.1.0
cisco ucs director express for big data 3.6.0.0
Fixed in6.7.3.0receipt

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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Attack path

Unauthenticated network requestno credentials, no interactionCisco Unified Computing System Dire…CWE-287 improper authenticationFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-287data compromise

What it is stated by the CNA

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-287
affected versions
cisco integrated management controller supervisor >= 2.2.0.3 <= 2.2.0.6; cisco ucs director >= 6.6.0.0 <= 6.6.1.0; cisco ucs director >= 6.7.0.0 <= 6.7.1.0; and 3 more, listed in full below
also scored by
[email protected] 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself tools.cisco.com seclists.org packetstormsecurity.com seclists.org packetstormsecurity.com packetstormsecurity.com receipt

Dated events

2022-01-06EPSS moved 0.11 to 0.362025-03-17EPSS moved 0.50 to 0.912026-06-15EPSS moved 0.90 to 0.76

Movement the material steps

14 Apr 20210.11097
6 Jan 20220.359
4 Feb 20220.18199
1 Apr 20220.01213 · crossed 0.10
7 Mar 20230.01127 · scoring model v2023.03.01
16 Jul 20230.20737 · crossed 0.10
18 Jul 20230.38185
17 Dec 20240.53120 · crossed 0.50
17 Mar 20250.91291 · crossed 0.90 · scoring model v2025.03.14
18 Nov 20250.80583 · crossed 0.90
21 Nov 20250.90896 · crossed 0.90
15 Jun 20260.75863 · crossed 0.90 · scoring model v2026.06.15
Show all 31 observations
14 Apr 20210.11097
6 Jan 20220.359
4 Feb 20220.18199
1 Apr 20220.01213
7 Mar 20230.01127
16 Jul 20230.20737
18 Jul 20230.38185
28 Jul 20230.37043
30 Nov 20230.44696
5 Apr 20240.43705
17 Apr 20240.44362
10 Jun 20240.40644
12 Jul 20240.42707
14 Aug 20240.43521
25 Oct 20240.40406
17 Dec 20240.53120
11 Jan 20250.50288
17 Mar 20250.91291
19 Mar 20250.91607
29 Mar 20250.91887
30 Mar 20250.91607
1 Jun 20250.91629
23 Jun 20250.91763
19 Jul 20250.91304
12 Oct 20250.91237
14 Oct 20250.90896
18 Nov 20250.80583
21 Nov 20250.90896
4 Mar 20260.90491
6 Jun 20260.90436
15 Jun 20260.75863

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 0.75863Published2019-08-21Index as of2026-06-15

The record had been public for 6 years, 9 months when this index was last written.

Published 2019-08-21 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-287, improper authentication. The index holds 4979 prior instances of this class, 49 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-28461matches 8 of 8KEV listed · 2023receipt
CVE-2024-53704 · SonicWall SonicOSmatches 8 of 9KEV listed · 2025receipt
CVE-2025-61882 · Oracle Concurrent Processingmatches 8 of 9KEV listed · 2025receipt
CVE-2022-40684 · Fortinet FortiOS, FortiProxy…matches 8 of 9KEV listed · 2022receipt
CVE-2020-12812 · Fortinet FortiOSmatches 8 of 9KEV listed · 2020receipt
CVE-2026-20127 · Cisco Catalyst SD-WAN Managermatches 8 of 9KEV listed · 2026receipt

"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

4979 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.

Siblings and hubs

Records related to this one

Its defect family

cisco unified computing system director

Of the 3 records in this family that state one, this holds the highest EPSS percentile: 0.99489.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

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What usually comes next

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