vciy

CVE-2019-3643

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

Print this page to keep the view as it stands on this date. Everything hidden behind a disclosure opens, and every receipt prints with its value.

MWG scanners updated to address CVE-2019-9511

CVE-2019-36434 of 4 sources documented this
30

rank 30 = 1 + 19 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.02390  ·  without this subject the record ranks 29

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 11

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 30

How much of the world it touches

NVD CPE configurations

20 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 30

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$28,700over 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

$28,700 = $4.99M incident cost x 0.24048551839932833 exposure x 0.0239 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

0.0239EPSSNOT IN KEVas of 2026-09-20
Severity5.3 MEDIUMreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2021-04-14, 1888 days at 0.02, as of 2026-06-15. 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

Sources disagree here.

Severity score
Trellix5.3 MEDIUMreceipt
NVD7.5 HIGHreceipt
What it costs
TrellixPartial availability lossreceipt
NVDComplete availability lossreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running McAfee, LLC McAfee Web Gateway (MWG)? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

What counts as a move

Set up a watchlist (needs a Practitioner account)

Record your call

Keep your verdict, your reason and the evidence together. The record takes its date when you save it.

AcceptDeferPatch by…Not affectedMitigated

Choose your verdict, then sign in or use an email link. Your first 100 records are free. Evidence is frozen when the record is created.

Private to your organization unless you share it. Put the proof link in your ticket so a reviewer can inspect the basis for your call. See how decision records work.

Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactPartial availability lossreceipt
Scored fromCVSS v3.1 · the CNA'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 in7.8.2.13receipt
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 CNA5.3 MEDIUMreceipt
CVSS, NVD7.5 HIGHreceipt
Exploit probability0.0239 · top 17% of all CVEsreceipt
Blast breadth3 products across 1 vendorderived
Assigned bytrellixreceipt
Recorded changes13 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMcAfee, LLC McAfee Web Gateway (MWG)receipt
Published rangesmcafee active response 1.0.0; mcafee active response 1.1.0; mcafee active response 2.0; mcafee active response 2.0.1receipt
Show all 20 published ranges
mcafee active response 1.0.0
mcafee active response 1.1.0
mcafee active response 2.0
mcafee active response 2.0.1
mcafee active response 2.1
mcafee active response 2.2
mcafee active response 2.3
mcafee active response 2.4
mcafee advanced threat defense 4.0
mcafee advanced threat defense 4.2
mcafee advanced threat defense 4.4
mcafee advanced threat defense 4.6
mcafee enterprise security manager 10.2.0
mcafee enterprise security manager 10.3.4
mcafee enterprise security manager 10.4.0
mcafee enterprise security manager 11.0.0
mcafee enterprise security manager 11.1.0
mcafee enterprise security manager 11.1.1
mcafee enterprise security manager 11.1.2
mcafee enterprise security manager 11.1.3
Fixed in7.8.2.13receipt

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.

Did this affect your environment?Answering needs an account.

What it is stated by the CNA

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9511, potentially leading to a denial of service. This affects the scanning proxies. 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
affected versions
mcafee active response 1.0.0; mcafee active response 1.1.0; mcafee active response 2.0; and 17 more, listed in full below
also scored by
[email protected] 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

The CNA scored it 5.3 and NVD 7.5. Both are shown because both were published; we do not pick one.

check it yourself kc.mcafee.com receipt

Movement the material steps

14 Apr 20210.00692
7 Mar 20230.00206 · scoring model v2023.03.01
17 Mar 20250.00812 · scoring model v2025.03.14
15 Jun 20260.0239 · scoring model v2026.06.15
Show all 13 observations
14 Apr 20210.00692
6 Jan 20220.03031
4 Feb 20220.05463
1 Apr 20220.01055
7 Mar 20230.00206
8 Nov 20230.00217
17 Mar 20250.00812
19 Mar 20250.00653
29 Mar 20250.0087
30 Mar 20250.00653
21 Apr 20250.00649
8 Sep 20250.00452
15 Jun 20260.0239

13 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 0.0239Published2019-09-11Index as of2026-06-15

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

Published 2019-09-11 receipt · Index as of 2026-06-15 derived

Siblings and hubs

Records related to this one

Its defect family

mcafee, llc mcafee web gateway (mwg)

Of the 2 records in this family, this is the only one whose title names cve-2019-9511.

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.

Browse the index from here

These are index-wide views, not findings about CVE-2019-3643.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.