vciy

CVE-2019-3883

INDEX BUILT · 2026-09-20

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In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads

CVE-2019-38834 of 4 sources documented this
26

rank 26 = 2 + 19 + 0 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.08426  ·  without this subject the record ranks 24

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 7

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 26

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 21

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 26

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$101,000over the next 30 days, if this record is yours
Movement-$216,000on 2025-11-21, the last material move, 6 months before this reading
Basisassumeda published average, not your estate

$101,000 = $4.99M incident cost x 0.24048551839932833 exposure x 0.08426 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

0.08426EPSSNOT IN KEVas of 2026-09-20
Severity5.3 MEDIUMreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2023-05-08, 1134 days at 0.08, 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
Redhat5.3 MEDIUMreceipt
NVD7.5 HIGHreceipt
Scoring standard
RedhatCVSS v3.0receipt
NVDCVSS v3.1receipt
What it costs
RedhatPartial availability lossreceipt
NVDComplete availability lossreceipt

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

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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 privileges required · no user interaction · low attack complexityreceipt
ImpactPartial availability lossreceipt
Scored fromCVSS v3.0 · the CNA's vectorreceipt
Weakness classCWE-772 Missing Release of Resource after Effective Lifetimereceipt
Published consequencesCWE-772: Availability: DoS: Resource Consumption (Other), DoS: Resource Consumption (Memory), DoS: Resource Consumption (CPU)[email protected]

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 15 Jun 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, the CNA5.3 MEDIUMreceipt
CVSS, NVD7.5 HIGHreceipt
Exploit probability0.08426 · top 5% of all CVEsreceipt
Blast breadth3 products across 3 vendorsderived
Assigned byredhatreceipt
Recorded changes31 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productRed Hat 389-ds-basereceipt
Published rangesfedoraproject 389 directory server <= 1.4.1.2; debian linux 8.0; redhat enterprise linux 6.0receipt

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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What it is stated by the CNA

In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service. 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-772
affected versions
fedoraproject 389 directory server <= 1.4.1.2; debian linux 8.0; redhat enterprise linux 6.0

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 lists.debian.org access.redhat.com access.redhat.com bugzilla.redhat.com pagure.io pagure.io +1 morereceipt

Dated events

2022-01-06EPSS moved 0.02 to 0.082023-03-07EPSS moved 0.01 to 0.452026-06-15EPSS moved 0.01 to 0.08

Movement the material steps

14 Apr 20210.01806
7 Mar 20230.44776 · crossed 0.10 · scoring model v2023.03.01
24 Apr 20230.21745
11 Aug 20230.09742 · crossed 0.10
17 Mar 20250.00335 · scoring model v2025.03.14
18 Nov 20250.18418 · crossed 0.10
21 Nov 20250.00401 · crossed 0.10
15 Jun 20260.08426 · scoring model v2026.06.15
Show all 31 observations
14 Apr 20210.01806
6 Jan 20220.07623
4 Feb 20220.08934
1 Apr 20220.01108
7 Mar 20230.44776
8 Mar 20230.43873
24 Apr 20230.21745
8 May 20230.13086
11 Aug 20230.09742
10 Apr 20240.08203
21 Jun 20240.05968
7 Sep 20240.04302
4 Dec 20240.05465
17 Dec 20240.04634
30 Jan 20250.04379
17 Mar 20250.00335
19 Mar 20250.00401
23 Mar 20250.00369
29 Mar 20250.00835
30 Mar 20250.00401
1 Jul 20250.00369
15 Oct 20250.00401
18 Nov 20250.18418
21 Nov 20250.00401
3 Dec 20250.00883
17 Jan 20260.00369
31 Jan 20260.00362
13 Mar 20260.00798
26 Apr 20260.0078
27 Apr 20260.00874
15 Jun 20260.08426

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 0.08426Published2019-04-17Index as of2026-06-15

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

Published 2019-04-17 receipt · Index as of 2026-06-15 derived

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