vciy

CVE-2021-22908

INDEX BUILT · 2026-09-20

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A buffer overflow vulnerability exists in Windows File Resource Profiles in 9.X allows a remote authenticated user with privileges to browse SMB…

CVE-2021-229084 of 4 sources documented this
44

rank 44 = 17 + 22 + 0 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.69377  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 22

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 44

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 39

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 44

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$3.46Mover the next 30 days, if this record is yours
Movement-$2.00Mon 2025-11-21, the last material move, 6 months before this reading
Basisassumeda published average, not your estate

$3.46M = $4.99M incident cost x 1 exposure x 0.69377 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

0.69377EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementthreshold crossedreceipt
RISING10Risen from 0.00918 to 0.69377 across 23 observations. arc-rules@v1

Foresight · where to check next

CVE-2016-6366CVE-2018-6789CVE-2016-0099CVE-2022-37055CVE-2020-15069CVE-2016-1017422908

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

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD'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 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, NVD8.8 HIGHreceipt
Exploit probability0.69377 · top 0.67% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byhackeronereceipt
Recorded changes23 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productPulse Connect Securereceipt
Published rangesivanti connect secure 9.0; ivanti connect secure 9.1; pulsesecure pulse connect secure 9.0rxreceipt

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

A buffer overflow vulnerability exists in Windows File Resource Profiles in 9.X allows a remote authenticated user with privileges to browse SMB shares to execute arbitrary code as the root user. As of version 9.1R3, this permission is not enabled by default. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-120
affected versions
ivanti connect secure 9.0; ivanti connect secure 9.1; pulsesecure pulse connect secure 9.0rx

check it yourself kb.pulsesecure.net receipt

Dated events

2022-02-04EPSS moved 0.04 to 0.152023-03-07EPSS moved 0.01 to 0.852026-06-15EPSS moved 0.23 to 0.69

Movement the material steps

28 May 20210.00918
4 Feb 20220.15362 · crossed 0.10
1 Apr 20220.01156 · crossed 0.10
7 Mar 20230.84659 · crossed 0.10 and 0.50 · scoring model v2023.03.01
19 Aug 20230.67701
17 Mar 20250.34574 · crossed 0.50 · scoring model v2025.03.14
29 Mar 20250.5007 · crossed 0.50
30 Mar 20250.34574 · crossed 0.50
6 Apr 20250.23922
18 Nov 20250.71825 · crossed 0.50
21 Nov 20250.31772 · crossed 0.50
15 Jun 20260.69377 · crossed 0.50 · scoring model v2026.06.15
Show all 23 observations
28 May 20210.00918
6 Jan 20220.03991
4 Feb 20220.15362
1 Apr 20220.01156
7 Mar 20230.84659
30 Mar 20230.81187
12 May 20230.77049
19 Aug 20230.67701
17 Dec 20240.63789
24 Jan 20250.60191
16 Mar 20250.62732
17 Mar 20250.34574
29 Mar 20250.5007
30 Mar 20250.34574
6 Apr 20250.23922
25 Apr 20250.28032
25 Jun 20250.30741
16 Jul 20250.31772
18 Nov 20250.71825
21 Nov 20250.31772
28 Mar 20260.30873
10 May 20260.22676
15 Jun 20260.69377

23 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 0.69377Published2021-05-27Index as of2026-06-15

The record had been public for 5 years when this index was last written.

Published 2021-05-27 receipt · Index as of 2026-06-15 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-2016-6366matches 8 of 8KEV listed · 2016receipt
CVE-2018-6789matches 7 of 8KEV listed · 2018receipt
CVE-2016-0099matches 7 of 8KEV listed · 2016receipt
CVE-2022-37055matches 7 of 8KEV listed · 2022receipt
CVE-2020-15069matches 7 of 8KEV listed · 2020receipt
CVE-2016-10174matches 7 of 8KEV listed · 2017receipt

"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

Its defect family

pulse connect secure

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

Nothing we hold separates this record from the others in its defect family. 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

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What usually comes next

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