vciy

CVE-2021-25283

INDEX BUILT · 2026-09-20

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An issue was discovered in through SaltStack Salt before 3002.5

CVE-2021-252833 of 4 sources documented this
38

rank 38 = 3 + 25 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.10510  ·  without this subject the record ranks 35

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 13

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 38

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 28

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 38

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$524,000over the next 30 days, if this record is yours
Movement+$160,000on 2026-04-19, the last material move, 3 months before this reading
Basisassumeda published average, not your estate

$524,000 = $4.99M incident cost x 1 exposure x 0.1051 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

0.1051EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-03-30, 493 days at 0.11, as of 2026-08-05. arc-rules@v1

Foresight · where to check next

langflow-aiRejetto HTTP FileCitrix NetScalerVMware WorkspaceIvanti EPMSpring Framework25283

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 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, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-94 Improper Control of Generation of Code ('Code Injection')receipt
Published consequencesCWE-94: Access Control: Bypass Protection Mechanism; Access Control: Gain Privileges or Assume Identity; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands…[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 branchsalt 2015.8.10; salt 2015.8.13; salt 2016.11.10; salt 2016.11.3; salt 2016.11.5; salt 2016.3.4receipt
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, NVD9.8 CRITICALreceipt
Exploit probability0.1051 · top 4% of all CVEsreceipt
Blast breadth3 products across 3 vendorsderived
Assigned bymitrereceipt
Recorded changes41 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesSaltstack salt; Fedoraproject fedora; Debian linuxreceipt
Published rangessaltstack salt < 2015.8.10; saltstack salt >= 2015.8.11 < 2015.8.13; saltstack salt >= 2016.3.0 < 2016.3.4; saltstack salt >= 2016.3.5 < 2016.3.6receipt
Show all 20 published ranges
saltstack salt < 2015.8.10
saltstack salt >= 2015.8.11 < 2015.8.13
saltstack salt >= 2016.3.0 < 2016.3.4
saltstack salt >= 2016.3.5 < 2016.3.6
saltstack salt >= 2016.3.7 < 2016.3.8
saltstack salt >= 2016.3.9 < 2016.11.3
saltstack salt >= 2016.11.4 < 2016.11.5
saltstack salt >= 2016.11.7 < 2016.11.10
saltstack salt >= 2017.5.0 < 2017.7.8
saltstack salt >= 2018.2.0 <= 2018.3.5
saltstack salt >= 2019.2.0 < 2019.2.5
saltstack salt >= 2019.2.6 < 2019.2.8
saltstack salt >= 3000 < 3000.6
saltstack salt >= 3001 < 3001.4
saltstack salt >= 3002 < 3002.5
fedoraproject fedora 32
fedoraproject fedora 33
fedoraproject fedora 34
debian linux 9.0
debian linux 10.0

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

An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect against server side template injection attacks. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-94
affected versions
saltstack salt < 2015.8.10; saltstack salt >= 2015.8.11 < 2015.8.13; saltstack salt >= 2016.3.0 < 2016.3.4; and 17 more, listed in full below

check it yourself github.com saltproject.io lists.fedoraproject.org lists.fedoraproject.org lists.fedoraproject.org security.gentoo.org +3 morereceipt

Dated events

2022-01-06EPSS moved 0.02 to 0.082025-03-29EPSS moved 0.08 to 0.422026-04-19EPSS moved 0.07 to 0.10

Movement the material steps

14 Apr 20210.01454
4 Feb 20220.20148 · crossed 0.10
1 Apr 20220.01183 · crossed 0.10
7 Mar 20230.03001 · scoring model v2023.03.01
1 Nov 20230.19081 · crossed 0.10
17 Dec 20240.32000
17 Mar 20250.05698 · crossed 0.10 · scoring model v2025.03.14
23 Mar 20250.25691 · crossed 0.10
24 Mar 20250.08064 · crossed 0.10
29 Mar 20250.42133 · crossed 0.10
30 Mar 20250.08064 · crossed 0.10
4 Oct 20250.10038 · crossed 0.10
30 Jan 20260.06824 · crossed 0.10
19 Apr 20260.10038 · crossed 0.10
15 Jun 20260.10426 · scoring model v2026.06.15
5 Aug 20260.1051

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 41 observations
14 Apr 20210.01454
11 Nov 20210.01659
20 Nov 20210.01865
6 Jan 20220.07855
4 Feb 20220.20148
1 Apr 20220.01183
7 Mar 20230.03001
18 Jun 20230.05817
7 Sep 20230.05715
3 Oct 20230.05869
30 Oct 20230.08077
1 Nov 20230.19081
8 Nov 20230.13433
12 Nov 20230.11620
22 Dec 20230.16680
17 Dec 20240.32000
1 Jan 20250.33081
17 Mar 20250.05698
19 Mar 20250.08064
23 Mar 20250.25691
24 Mar 20250.08064
29 Mar 20250.42133
30 Mar 20250.08064
1 Apr 20250.07462
15 Apr 20250.07444
6 Sep 20250.05684
11 Sep 20250.08045
16 Sep 20250.08315
24 Sep 20250.07696
1 Oct 20250.06824
4 Oct 20250.10038
27 Oct 20250.11259
28 Oct 20250.10038
18 Nov 20250.20019
21 Nov 20250.10038
27 Dec 20250.11259
28 Dec 20250.10038
30 Jan 20260.06824
19 Apr 20260.10038
15 Jun 20260.10426
5 Aug 20260.1051

41 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 0.1051Published2021-02-27Index as of2026-08-05

Exploit probability more than doubled between 2023-10-30 and 2023-11-01 (0.08077 → 0.19081) and the record had been public for 5 years, 5 months when this index was last written.

Published 2021-02-27 receipt · Index as of 2026-08-05 derived

The pattern, elsewhere

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-3248 · langflow-ai langflowmatches 8 of 8KEV listed · 2025receipt
CVE-2024-23692 · Rejetto HTTP File Servermatches 8 of 8KEV listed · 2024receipt
CVE-2023-3519 · Citrix NetScaler ADCmatches 8 of 8KEV listed · 2023receipt
CVE-2022-22954 · VMware Workspace ONE Access and Identity…matches 8 of 8KEV listed · 2022receipt
CVE-2021-44529 · Ivanti EPMmatches 8 of 8KEV listed · 2021receipt
CVE-2018-1273 · Spring Frameworkmatches 8 of 8KEV listed · 2018receipt

"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

7185 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 3 records in this advisory that state one, this holds the highest EPSS percentile: 0.95443.

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

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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.