vciy

CVE-2019-1788

INDEX BUILT · 2026-09-20

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ClamAV OLE2 File Out-Of-Bounds Write Vulnerability

CVE-2019-17884 of 4 sources documented this
19

rank 19 = 0 + 14 + 0 + 5 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.01839  ·  without this subject the record ranks 19

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 5.5, from NVD  ·  without this subject the record ranks 5

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 19

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 14

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 19

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$56,200over the next 30 days, if this record is yours
Movement+$97,700on 2026-05-26, the last material move, 20 days before this reading
Basisassumeda published average, not your estate

$56,200 = $4.99M incident cost x 0.6121449559255632 exposure x 0.01839 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

0.01839EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementthreshold crossedreceipt
STEADY10Holding near 0.02 across 28 observations. arc-rules@v1

Foresight · where to check next

CVE-2022-47966CVE-2022-29499VMware vCenterQNAP Systems Inc.MicrosoftQNAP NAS devices1788

This record is one instance of CWE-20, improper input validation. The index holds 13347 prior instances of this class, 73 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

Sources disagree here.

Severity score
Cisco7.5 HIGHreceipt
NVD5.5 MEDIUMreceipt
Scoring standard
CiscoCVSS v3.0receipt
NVDCVSS v3.1receipt

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

Running Cisco ClamAV? Check your version

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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
ImpactComplete availability lossreceipt
Scored fromCVSS v3.0 · the CNA's vectorreceipt
Weakness classCWE-20 Improper Input Validationreceipt
Published consequencesCWE-20: Availability: DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory); Confidentiality: Read Memory, Read Files or Directories…[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 CNA7.5 HIGHreceipt
CVSS, NVD5.5 MEDIUMreceipt
Exploit probability0.01839 · top 22% of all CVEsreceipt
Blast breadth3 products across 3 vendorsderived
Assigned byciscoreceipt
Recorded changes28 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productCisco ClamAVreceipt
Published rangesclamav <= 0.101.1; opensuse leap 15.0; opensuse leap 42.3; debian linux 8.0receipt

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 ClamAVCWE-20 improper input validationAvailability lossA:Hexploits CWE-20data compromise

What it is stated by the CNA

A vulnerability in the Object Linking & Embedding (OLE2) file scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a lack of proper input and validation checking mechanisms for OLE2 files sent an affected device. An attacker could exploit this vulnerability by sending malformed OLE2 files to the device running an affected version ClamAV Software. An exploit could allow the attacker to cause an out-of-bounds write condition, resulting in a crash that could result in a denial of service condition on an affected device. receipt

NVD's analysis a second authority

severity
5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
weakness
CWE-20; CWE-787
affected versions
clamav <= 0.101.1; opensuse leap 15.0; opensuse leap 42.3; and 1 more, listed in full below

The CNA scored it 7.5 and NVD 5.5. Both are shown because both were published; we do not pick one.

check it yourself bugs.chromium.org security.gentoo.org lists.opensuse.org lists.opensuse.org lists.debian.org receipt

Dated events

2022-01-06EPSS moved 0.02 to 0.082023-03-07EPSS moved 0.01 to 0.162026-06-15EPSS moved 0.13 to 0.02

Movement the material steps

14 Apr 20210.01943
7 Mar 20230.16373 · crossed 0.10 · scoring model v2023.03.01
29 Aug 20240.08301 · crossed 0.10
17 Mar 20250.17056 · crossed 0.10 · scoring model v2025.03.14
29 Mar 20250.08747 · crossed 0.10
30 Mar 20250.13763 · crossed 0.10
27 Dec 20250.08091 · crossed 0.10
28 Dec 20250.10422 · crossed 0.10
20 Feb 20260.09861 · crossed 0.10
26 May 20260.12731 · crossed 0.10
15 Jun 20260.01839 · crossed 0.10 · scoring model v2026.06.15
Show all 28 observations
14 Apr 20210.01943
6 Jan 20220.08166
4 Feb 20220.01787
1 Apr 20220.01213
7 Mar 20230.16373
1 Apr 20240.15030
17 Jul 20240.11272
29 Aug 20240.08301
17 Dec 20240.04209
15 Feb 20250.05263
17 Mar 20250.17056
25 Mar 20250.13763
29 Mar 20250.08747
30 Mar 20250.13763
30 Jul 20250.10797
1 Oct 20250.13763
27 Oct 20250.10797
28 Oct 20250.13763
18 Nov 20250.15547
21 Nov 20250.13763
1 Dec 20250.10422
27 Dec 20250.08091
28 Dec 20250.10422
22 Jan 20260.10248
20 Feb 20260.09861
9 Mar 20260.09531
26 May 20260.12731
15 Jun 20260.01839

28 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 0.01839Published2019-04-08Index as of2026-06-15

The record had been public for 7 years, 2 months when this index was last written.

Published 2019-04-08 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-20, improper input validation. The index holds 13347 prior instances of this class, 73 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2022-47966matches 6 of 9KEV listed · 2023receipt
CVE-2022-29499matches 6 of 9KEV listed · 2022receipt
CVE-2021-21985 · VMware vCenter Server and VMware Cloud…matches 6 of 10KEV listed · 2021receipt
CVE-2018-19949 · QNAP Systems Inc. QTSmatches 6 of 10KEV listed · 2020receipt
CVE-2019-0604 · Microsoft SharePoint Servermatches 6 of 10KEV listed · 2019receipt
CVE-2019-7193 · QNAP NAS devicesmatches 6 of 10KEV listed · 2019receipt

"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

13347 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 clamav

Of the 11 records in this family, this is the only one whose title names ole2 write.

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-2019-1788.

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.