vciy

CVE-2021-31845

INDEX BUILT · 2026-09-20

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Remote Code Execution in McAfee DLP Discover

CVE-2021-318454 of 4 sources documented this
22

rank 22 = 0 + 18 + 0 + 4 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.01118  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.3, from NVD  ·  without this subject the record ranks 4

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 22

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 18

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 22

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$55,800over 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

$55,800 = $4.99M incident cost x 1 exposure x 0.01118 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

0.01118EPSSNOT IN KEVas of 2026-09-20
Severity8.4 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementsteadyreceipt
PLATEAU10Minimal movement since 2021-09-18, 1757 days at 0.01, as of 2026-07-11. arc-rules@v1

Foresight · where to check next

Cisco SecureGoogle ChromeCVE-2016-0099CVE-2016-6366CVE-2013-0641CVE-2013-133131845

This record is one instance of CWE-120, buffer copy without checking size of input ('classic buffer overflow'). The index holds 4490 prior instances of this class, 24 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
Trellix8.4 HIGHreceipt
NVD7.3 HIGHreceipt
What it costs
TrellixComplete confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
NVDComplete confidentiality, integrity and 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.

Reachreachable from an adjacent network · low privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')receipt
Published consequencesCWE-120: Integrity, Confidentiality, Availability: Modify Memory, Execute Unauthorized Code or Commands; Availability: Modify Memory, DoS: Crash, Exit, or Restart, 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 in10.6.100receipt
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 CNA8.4 HIGHreceipt
CVSS, NVD7.3 HIGHreceipt
Exploit probability0.01118 · top 35% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bytrellixreceipt
Recorded changes17 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMcAfee,LLC McAfee Data Loss Prevention (DLP) Discoverreceipt
Published rangesmcafee data loss prevention discover < 11.6.100; mcafee data loss prevention discover >= 11.7.0 < 11.7.100receipt
Fixed in10.6.100receipt

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

Adjacent networkrequires low privileges, requires…McAfeeCWE-120 weaknessAdjacent componentsscope changeFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-120scope changedata compromise

What it is stated by the CNA

A buffer overflow vulnerability in McAfee Data Loss Prevention (DLP) Discover prior to 11.6.100 allows an attacker in the same network as the DLP Discover to execute arbitrary code through placing carefully constructed Ami Pro (.sam) files onto a machine and having DLP Discover scan it, leading to remote code execution with elevated privileges. This is caused by the destination buffer being of fixed size and incorrect checks being made on the source size. receipt

NVD's analysis a second authority

severity
7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
weakness
CWE-120
affected versions
mcafee data loss prevention discover < 11.6.100; mcafee data loss prevention discover >= 11.7.0 < 11.7.100
also scored by
[email protected] 8.4 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

The CNA scored it 8.4 and NVD 7.3. Both are shown because both were published; we do not pick one.

check it yourself kc.mcafee.com receipt

Movement the material steps

18 Sep 20210.00918
7 Mar 20235.9e-4 · scoring model v2023.03.01
17 Mar 20250.00796 · scoring model v2025.03.14
15 Jun 20260.01082 · scoring model v2026.06.15
11 Jul 20260.01118
Show all 17 observations
18 Sep 20210.00918
6 Jan 20220.03991
4 Feb 20220.02763
1 Apr 20220.01103
7 Mar 20235.9e-4
8 Mar 20230.00059
10 Apr 20230.00070
25 Apr 20230.00073
2 Sep 20230.00074
10 Dec 20230.00081
1 Mar 20240.00084
17 Mar 20250.00796
29 Mar 20250.00626
30 Mar 20250.00796
25 Nov 20250.00962
15 Jun 20260.01082
11 Jul 20260.01118

17 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 0.01118Published2021-09-17Index as of2026-07-11

The record had been public for 4 years, 9 months when this index was last written.

Published 2021-09-17 receipt · Index as of 2026-07-11 derived

The pattern, elsewhere

This record is one instance of CWE-120, buffer copy without checking size of input ('classic buffer overflow'). The index holds 4490 prior instances of this class, 24 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-20333 · Cisco Secure Firewall Adaptive Security…matches 6 of 9KEV listed · 2025receipt
CVE-2020-15999 · Google Chromematches 6 of 9KEV listed · 2020receipt
CVE-2016-0099matches 5 of 8KEV listed · 2016receipt
CVE-2016-6366matches 5 of 8KEV listed · 2016receipt
CVE-2013-0641matches 5 of 8KEV listed · 2013receipt
CVE-2013-1331matches 5 of 8KEV listed · 2013receipt

"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

4490 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

Fixed with these, by one advisory

Of the 2 records in this advisory, this is the only one holding a stated fix version: 10.6.100.

Listed because one advisory covers them, not because they are the same defect. Each record's own state is on its own page.

Grouping: held values

Browse the index from here

These are index-wide views, not findings about CVE-2021-31845.

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.

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