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CVE-2026-13020

INDEX BUILT · 2026-09-20

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Weak Password Recovery Mechanism in Portal for ArcGIS

CVE-2026-130204 of 4 sources documented this
27

rank 27 = 0 + 25 + 0 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.00266  ·  without this subject the record ranks 27

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 2

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 27

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 27

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$13,300over 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

$13,300 = $4.99M incident cost x 1 exposure x 0.00266 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

0.00266EPSSNOT IN KEVas of 2026-09-20
Severity8.1 HIGHreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementsteadyreceipt
PLATEAU10Minimal movement since 2026-07-08, 19 days at 0.00, as of 2026-07-27. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Sources disagree here.

Severity score
Esri8.1 HIGHreceipt
NVD9.8 CRITICALreceipt

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

Running Esri Portal for ArcGIS? 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.

Watch this record

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What counts as a move

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Record your call

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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 · high attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-640 Weak Password Recovery Mechanism for Forgotten Passwordreceipt
Published consequencesCWE-640: Access Control: Gain Privileges or Assume Identity; Availability: DoS: Resource Consumption (Other); Integrity, Other: Other[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in12.1receipt
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 CNA8.1 HIGHreceipt
CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.00266 · top 81% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byEsrireceipt
Recorded changes3 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productEsri Portal for ArcGISreceipt
Published rangesesri portal for arcgis <= 12.1receipt
Fixed in12.1receipt

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 interactionEsri Portal for ArcGISCWE-640 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-640data compromise

What it is stated by the CNA

A Weak Password Recovery Mechanism for Forgotten Password exists in Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes. A remote, unauthorized attacker may assume ownership of a user’s account by manipulating this mechanism. ArcGIS Administrators should configure an email server with ArcGIS Enterprise to facilitate user self-service password recovery. The ability for an administrator to reset a user’s password remains unchanged. 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-640
affected versions
esri portal for arcgis <= 12.1
also scored by
[email protected] 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

The CNA scored it 8.1 and NVD 9.8. Both are shown because both were published; we do not pick one.

check it yourself esri.com receipt

Movement the material steps

8 Jul 20260.00225
27 Jul 20260.00266
Show all 3 observations
8 Jul 20260.00225
10 Jul 20260.00234
27 Jul 20260.00266

3 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 0.00266Published2026-07-07Index as of2026-07-27

The record had been public for 20 days when this index was last written.

Published 2026-07-07 receipt · Index as of 2026-07-27 derived

Siblings and hubs

Records related to this one

Its defect family

esri portal for arcgis

Of the 2 records in this family, this is the only one whose title names weak password recovery.

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-2026-13020.

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.