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CVE-2025-20282

INDEX BUILT · 2026-09-20

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Cisco ISE API Unauthenticated Remote Code Execution Vulnerability

CVE-2025-202824 of 4 sources documented this
50

rank 50 = 19 + 25 + 2 + 4 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.27498  ·  without this subject the record ranks 31

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 10.0, from the CNA  ·  without this subject the record ranks 25

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-08-05  ·  without this subject the record ranks 48

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 46

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 50

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.37Mover the next 30 days, if this record is yours
Movement+$68,300on 2026-07-23, the last material move, 1 month before this reading
Basisassumeda published average, not your estate

$1.37M = $4.99M incident cost x 1 exposure x 0.27498 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

0.27498EPSSNOT IN KEVas of 2026-09-20
Severity10 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseno fix version held
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-08-05, 41 days at 0.27, as of 2026-09-15. arc-rules@v1

Foresight · where to check next

SonicWall EmailOracle PaymentsConnectWiseIntel StandardCVE-2013-0643minio20282

This record is one instance of CWE-269, improper privilege management. The index holds 3614 prior instances of this class, 21 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

Running Cisco Identity Services Engine Software? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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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 confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-269 Improper Privilege Managementreceipt
Published consequencesCWE-269: Access Control: Gain Privileges or Assume Identity[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 Sep 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: Proof-of-concept published · 1 public repository, 2025-07-01.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2025-07-01receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA10 CRITICALreceipt
Exploit probability0.27498 · top 2% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned byciscoreceipt
Recorded changes24 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productCisco Identity Services Engine Softwarereceipt
Published rangescisco identity services engine 3.4.0; cisco identity services engine passive identity connector 3.4.0receipt

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 Identity Services Engine Soft…CWE-269 improper privilege manage…Adjacent componentsscope changeFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-269scope changedata compromise

What it is stated by the CNA

A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device and then execute those files on the underlying operating system as root. This vulnerability is due a lack of file validation checks that would prevent uploaded files from being placed in privileged directories on an affected system. An attacker could exploit this vulnerability by uploading a crafted file to the affected device. A successful exploit could allow the attacker to store malicious files on the affected system and then execute arbitrary code or obtain root privileges on the system. receipt

NVD's analysis a second authority

weakness
CWE-269
affected versions
cisco identity services engine 3.4.0; cisco identity services engine passive identity connector 3.4.0
also scored by
[email protected] 10 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

check it yourself sec.cloudapps.cisco.com receipt

Dated events

2026-06-15EPSS moved 0.01 to 0.102026-07-23EPSS moved 0.10 to 0.112026-08-05EPSS moved 0.12 to 0.27

Movement the material steps

26 Jun 20250.00102
15 Jun 20260.09805 · scoring model v2026.06.15
23 Jul 20260.11173 · crossed 0.10
5 Aug 20260.26516
15 Sep 20260.27498

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

Show all 21 observations
26 Jun 20250.00102
1 Jul 20250.00135
16 Jul 20250.00136
27 Jul 20250.00148
1 Sep 20250.00155
25 Oct 20250.00142
18 Nov 20250.00202
21 Nov 20250.00112
22 Nov 20250.00107
3 Dec 20250.00127
19 Jan 20260.00161
29 Jan 20260.00221
28 Feb 20260.00242
11 Mar 20260.00294
21 Apr 20260.00591
15 Jun 20260.09805
23 Jul 20260.11173
3 Aug 20260.12033
5 Aug 20260.26516
28 Aug 20260.27003
15 Sep 20260.27498

21 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 0.27498Published2025-06-25Public PoC2025-07-01Index as of2026-09-15

Exploit probability more than doubled between 2026-08-03 and 2026-08-05 (0.12033 → 0.26516) and the record had been public for 1 year, 2 months when this index was last written.

Published 2025-06-25 receipt · Public PoC 2025-07-01 receipt · Index as of 2026-09-15 derived

The pattern, elsewhere

This record is one instance of CWE-269, improper privilege management. The index holds 3614 prior instances of this class, 21 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2021-20021 · SonicWall Email Securitymatches 7 of 9KEV listed · 2021receipt
CVE-2026-46817 · Oracle Paymentsmatches 7 of 9KEV listed · 2026receipt
CVE-2026-84869 · ConnectWise ScreenConnectmatches 7 of 9KEV listed · 2026receipt
CVE-2017-5689 · Intel Standard Manageabilitymatches 7 of 9KEV listed · 2017receipt
CVE-2013-0643matches 6 of 8KEV listed · 2013receipt
CVE-2023-28434 · miniomatches 6 of 9KEV listed · 2023receipt

"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

3614 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

cisco-sa-ise-unauth-rce-ZAd2GnJ6

Of the 3 records in this advisory, this is the only one that does not hold a CISA KEV listing. That is a fact about what the catalogue records, not a finding about exposure.

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

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