vciy

CVE-2019-3948

INDEX BUILT · 2026-09-20

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The Amcrest IP2M-841B V2.520.AC00.18.R, Dahua IPC-XXBXX V2.622.0000000.9.R, Dahua IPC HX5X3X and HX4X3X V2.800.0000008.0.R, Dahua DH-IPC HX883X and…

CVE-2019-39484 of 4 sources documented this
34

rank 34 = 6 + 19 + 1 + 8 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.25018  ·  without this subject the record ranks 28

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 15

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-01-20  ·  without this subject the record ranks 33

How much of the world it touches

NVD CPE configurations

12 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 34

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$764,000over the next 30 days, if this record is yours
Movement-$911,000on 2025-11-21, the last material move, 9 months before this reading
Basisassumeda published average, not your estate

$764,000 = $4.99M incident cost x 0.6121449559255632 exposure x 0.25018 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

0.25018EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 83 days at 0.25, as of 2026-09-06. arc-rules@v1

Foresight · where to check next

CVE-2022-24990Veeam BackupFortinet FortiOSIvanti EndpointCVE-2023-28461CVE-2022-265013948

This record is one instance of CWE-306, missing authentication for critical function. The index holds 3317 prior instances of this class, 54 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 lossreceipt
Scored fromCVSS v3.0 · NVD's vectorreceipt
Weakness classCWE-306 Missing Authentication for Critical Functionreceipt
Published consequencesCWE-306: Access Control, Other: Gain Privileges or Assume Identity, Varies by Context[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 branchdh-ipc-hx863x 2018-05-18; dh-sd4xxxxx 2018-05-18; dh-sd5xxxxx 2018-05-18; dh-sd6xxxxx 2018-05-18; ipc-xxbxx 2018-05-18; nvr2xxx-4ks2 2018-05-18receipt
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 probability0.25018 · top 2% of all CVEsreceipt
Blast breadth12 products across 2 vendorsderived
Assigned bytenablereceipt
Recorded changes32 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productDahua IPC-XXBXX; Dahua IPC HX5X3X and HX4X3X; Dahua DH-IPC HX883X and DH-IPC-HX863X; Dahua DH-SD4XXXXX; Dahua DH-SD5XXXXX; Dahua DH-SD6XXXXX; Dahua NVR5XX-4KS2; Dahua NVR4XXX-4KS2receipt
Published rangesdahua dh-ipc-hx863x < 2018-05-18; dahua dh-ipc-hx883x < 2018-05-18; dahua dh-sd4xxxxx < 2018-05-18; dahua dh-sd5xxxxx < 2018-05-18receipt
Show all 12 published ranges
dahua dh-ipc-hx863x < 2018-05-18
dahua dh-ipc-hx883x < 2018-05-18
dahua dh-sd4xxxxx < 2018-05-18
dahua dh-sd5xxxxx < 2018-05-18
dahua dh-sd6xxxxx < 2018-05-18
dahua ipc-hx4x3x < 2018-05-18
dahua ipc-hx5x3x < 2018-05-18
dahua ipc-xxbxx < 2018-05-18
dahua nvr2xxx-4ks2 < 2018-05-18
dahua nvr4xxx-4ks2 < 2018-05-18
dahua nvr5xxx-4ks2 < 2018-05-18
amcrest ip2m-841b firmware 2.520.ac00.18.r

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

The Amcrest IP2M-841B V2.520.AC00.18.R, Dahua IPC-XXBXX V2.622.0000000.9.R, Dahua IPC HX5X3X and HX4X3X V2.800.0000008.0.R, Dahua DH-IPC HX883X and DH-IPC-HX863X V2.622.0000000.7.R, Dahua DH-SD4XXXXX V2.623.0000000.7.R, Dahua DH-SD5XXXXX V2.623.0000000.1.R, Dahua DH-SD6XXXXX V2.640.0000000.2.R and V2.623.0000000.1.R, Dahua NVR5XX-4KS2 V3.216.0000006.0.R, Dahua NVR4XXX-4KS2 V3.216.0000006.0.R, and NVR2XXX-4KS2 do not require authentication to access the HTTP endpoint /videotalk. An unauthenticated, remote person can connect to this endpoint and potentionally listen to the audio of the capturing device. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
weakness
CWE-306
affected versions
dahua dh-ipc-hx863x < 2018-05-18; dahua dh-ipc-hx883x < 2018-05-18; dahua dh-sd4xxxxx < 2018-05-18; and 9 more, listed in full below

check it yourself tenable.com packetstormsecurity.com us.dahuasecurity.com dahuasecurity.com receipt

Dated events

2022-02-04EPSS moved 0.05 to 0.332025-03-17EPSS moved 0.03 to 0.432026-09-06EPSS moved 0.17 to 0.25

Movement the material steps

14 Apr 20210.04504
4 Feb 20220.33195 · crossed 0.10
1 Apr 20220.08382 · crossed 0.10
7 Mar 20230.10436 · crossed 0.10 · scoring model v2023.03.01
22 Nov 20230.09884 · crossed 0.10
25 Mar 20240.10144 · crossed 0.10
18 May 20240.09427 · crossed 0.10
22 Jul 20240.10086 · crossed 0.10
9 Aug 20240.07383 · crossed 0.10
17 Mar 20250.4251 · crossed 0.10 · scoring model v2025.03.14
18 Nov 20250.67831 · crossed 0.50
21 Nov 20250.37992 · crossed 0.50
15 Jun 20260.26697 · scoring model v2026.06.15
6 Sep 20260.25018
Show all 32 observations
14 Apr 20210.04504
4 Feb 20220.33195
1 Apr 20220.08382
7 Mar 20230.10436
12 Mar 20230.11677
28 Mar 20230.11086
15 Apr 20230.12519
30 Apr 20230.11359
18 May 20230.10204
22 Nov 20230.09884
25 Mar 20240.10144
18 May 20240.09427
19 Jun 20240.07357
22 Jul 20240.10086
9 Aug 20240.07383
17 Dec 20240.03024
19 Dec 20240.03107
17 Mar 20250.4251
29 Mar 20250.3294
30 Mar 20250.4251
9 May 20250.44516
6 Sep 20250.37992
18 Nov 20250.67831
21 Nov 20250.37992
20 Jan 20260.45751
14 May 20260.45334
15 Jun 20260.26697
27 Jul 20260.25018
23 Aug 20260.16823
30 Aug 20260.25018
5 Sep 20260.16823
6 Sep 20260.25018

32 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 0.25018Published2019-07-29Index as of2026-09-06

The record had been public for 7 years, 1 month when this index was last written.

Published 2019-07-29 receipt · Index as of 2026-09-06 derived

The pattern, elsewhere

This record is one instance of CWE-306, missing authentication for critical function. The index holds 3317 prior instances of this class, 54 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2022-24990matches 8 of 8KEV listed · 2023receipt
CVE-2023-27532 · Veeam Backup & Replicationmatches 8 of 9KEV listed · 2023receipt
CVE-2019-5591 · Fortinet FortiOSmatches 7 of 9KEV listed · 2020receipt
CVE-2026-1603 · Ivanti Endpoint Managermatches 7 of 9KEV listed · 2026receipt
CVE-2023-28461matches 6 of 8KEV listed · 2023receipt
CVE-2022-26501matches 6 of 8KEV listed · 2022receipt

"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

3317 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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