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CVE-2021-35587

INDEX BUILT · 2026-09-20

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Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: OpenSSO Agent)

CVE-2021-355874 of 4 sources documented this
70

rank 70 = 40 + 19 + 0 + 5 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.96284 · CISA KEV listed  ·  without this subject the record ranks 30

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from NVD  ·  without this subject the record ranks 51

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 70

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 65

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 64

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.80Mover the next 30 days, if this record is yours
Movement-$2.04Mon 2024-12-17, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$4.80M = $4.99M incident cost x 1 exposure x 0.96284 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

0.96284EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseno fix version held
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2025-03-17, 536 days at 0.96, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

CorporationCVE-2023-28461Corporation WebCVE-2022-26501Oracle Paymentslangflow-ai35587

This record is one instance of CWE-306, missing authentication for critical function. The index holds 3316 prior instances of this class, 53 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
Oracle9.8 CRITICALreceipt
NVD7.5 HIGHreceipt
Scoring standard
OracleCVSS v3.1receipt
NVDCVSS v2.0receipt

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

Running Oracle Corporation Access Manager? 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

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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 · the CNA's vectorreceipt
Weakness classCWE-306 Missing Authentication for Critical Functionreceipt
Published consequencesCWE-306: Access Control, Other: Gain Privileges or Assume Identity, Varies by Context[email protected]
Ransomware campaign useUnknown to CISAreceipt

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 4 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.
CISA remediation statusoverdue since 2022-12-19receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV313 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2022-11-28.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2022-03-14receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2022-11-28receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA9.8 CRITICALreceipt
CVSS, NVD7.5 HIGHreceipt
Exploit probability0.96284 · top 0.12% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byoraclereceipt
Recorded changes95 · last 17 Sep 2026derived

Affected & Fixed Versions as published

Affected productOracle Corporation Access Managerreceipt
Published rangesoracle access manager 11.1.2.3.0; oracle access manager 12.2.1.3.0; oracle access manager 12.2.1.4.0receipt

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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What it is stated by the CNA

Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: OpenSSO Agent). Supported versions that are affected are 11.1.2.3.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). receipt

NVD's analysis a second authority

severity
7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
weakness
CWE-306
affected versions
oracle access manager 11.1.2.3.0; oracle access manager 12.2.1.3.0; oracle access manager 12.2.1.4.0
also scored by
[email protected] 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CNA scored it 9.8 and NVD 7.5. Both are shown because both were published; we do not pick one.

check it yourself oracle.com receipt

Dated events

2022-11-28Added to CISA KEV2022-12-19CISA remediation due2023-03-07EPSS moved 0.01 to 0.972024-12-17EPSS moved 0.96 to 0.552025-03-17EPSS moved 0.60 to 0.94

Movement the material steps

20 Jan 20220.00416
7 Mar 20230.97289 · crossed 0.10 and 0.50 and 0.90 · scoring model v2023.03.01
17 Dec 20240.55401 · crossed 0.90
17 Mar 20250.9426 · crossed 0.90 · scoring model v2025.03.14
15 Jun 20260.96284 · scoring model v2026.06.15
Show all 81 observations
20 Jan 20220.00416
4 Feb 20220.00885
7 Mar 20230.97289
31 Mar 20230.97166
13 Apr 20230.97122
8 May 20230.96977
9 May 20230.96871
13 May 20230.96187
18 May 20230.96871
5 Jun 20230.96798
2 Jul 20230.96789
8 Jul 20230.96916
15 Jul 20230.96928
12 Aug 20230.96868
10 Sep 20230.96798
22 Sep 20230.95840
24 Sep 20230.95945
24 Oct 20230.95643
7 Feb 20240.96799
14 Mar 20240.96791
19 Mar 20240.96477
28 Mar 20240.96376
12 Apr 20240.96240
10 May 20240.95810
3 Jul 20240.95425
17 Jul 20240.95373
25 Aug 20240.95139
8 Sep 20240.94749
26 Sep 20240.96343
4 Oct 20240.96434
30 Oct 20240.96184
27 Nov 20240.96261
17 Dec 20240.55401
25 Dec 20240.56613
5 Feb 20250.55411
21 Feb 20250.60032
17 Mar 20250.9426
18 Mar 20250.94236
23 Mar 20250.9426
24 Mar 20250.94236
25 Mar 20250.94197
26 Mar 20250.94225
31 Mar 20250.94196
1 Apr 20250.94148
9 Apr 20250.94153
12 Apr 20250.94214
13 Apr 20250.94251
14 Apr 20250.94233
15 Apr 20250.93961
16 Apr 20250.94056
19 Apr 20250.94102
27 Apr 20250.94181
28 Apr 20250.94191
1 May 20250.94062
4 May 20250.94191
16 May 20250.94235
1 Jun 20250.9412
4 Jun 20250.94235
26 Jun 20250.94199
1 Jul 20250.94072
4 Jul 20250.94199
5 Jul 20250.94233
5 Aug 20250.94263
21 Aug 20250.94253
24 Aug 20250.94258
8 Oct 20250.94278
22 Oct 20250.94308
12 Nov 20250.94293
18 Nov 20250.94085
21 Nov 20250.94326
22 Nov 20250.94293
18 Dec 20250.94269
30 Dec 20250.94234
26 Jan 20260.94258
11 Mar 20260.94234
17 Mar 20260.94258
21 Mar 20260.94295
22 Mar 20260.94274
23 Mar 20260.94234
30 Apr 20260.94269
15 Jun 20260.96284

81 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 0.96284Published2022-01-19Public PoC2022-03-14CISA KEV2022-11-28Index as of2026-09-04

Listed by CISA 313 days after it published and the record had been public for 4 years, 7 months when this index was last written.

No material movement in 81 days as of the last ingest this index recorded.

Published 2022-01-19 receipt · Public PoC 2022-03-14 receipt · CISA KEV 2022-11-28 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-306, missing authentication for critical function. The index holds 3316 prior instances of this class, 53 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-35273 · Oracle Corporation PeopleSoft Enterprise…matches 9 of 9KEV listed · 2026receipt
CVE-2023-28461matches 8 of 8KEV listed · 2023receipt
CVE-2022-21587 · Oracle Corporation Web Applications Desktop…matches 9 of 9KEV listed · 2022receipt
CVE-2022-26501matches 8 of 8KEV listed · 2022receipt
CVE-2026-46817 · Oracle Paymentsmatches 9 of 9KEV listed · 2026receipt
CVE-2025-3248 · langflow-ai langflowmatches 8 of 9KEV listed · 2025receipt

"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

3316 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

oracle corporation access manager

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

These are index-wide views, not findings about CVE-2021-35587.

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.