CVE-2021-35587
CriticalExploitedPublic exploitEasily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager.
Published Nov 30, 2022 · Updated Oct 21, 2025 · Also known as TR-22-0712
Key Facts
Patch immediately- CVE-2021-35587 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Access Manager (Oracle).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 28, 2022. Public exploit code is available.
- EPSS estimates a 96% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
96%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
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).
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 28, 2022 | Dec 19, 2022 | Not reported |
| Industry KEV feed | Nov 28, 2022 | Dec 19, 2022 | Not reported |
| CIRCL KEV | Nov 28, 2022 | Dec 19, 2022 | Not reported |
| ENISA EUVD | Nov 28, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Access ManagerOracle | 11.1.2.3.0, 12.2.1.3.0, 12.2.1.4.0, >= 11.1.2.3.0 | n/a |
Timeline
Added to CISA KEV
Nov 28, 2022
Added to Industry KEV feed
Nov 28, 2022
Added to CIRCL KEV
Nov 28, 2022
Added to ENISA EUVD
Nov 28, 2022
Publicly disclosed
Nov 30, 2022
Last updated
Oct 21, 2025
Weakness Type
- CWE-306 Missing Authentication for Critical Function
References
- advisoryhttps://www.oracle.com/security-alerts/cpujan2022.html
- advisoryhttps://www.securitynewspaper.com/2022/04/20/new-oracle-update-fixes-520-vulnerabilities-in-12-products-three-critical-flaws-with-cvss-scores-of-10-and-70-flaws-with-9-8-10-score/
- advisoryhttps://www.securitynewspaper.com/2022/11/29/critical-rce-vulnerability-in-oracle-fusion-middleware-is-being-exploited-by-adversaries-in-the-wild/
- advisoryUSOM advisory
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: OpenSSO Agent).
Affected: Access Manager (Oracle) versions 11.1.2.3.0, 12.2.1.3.0, 12.2.1.4.0, >= 11.1.2.3.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 28, 2022.
Yes. It was added on Nov 28, 2022 with a federal remediation due date of Dec 19, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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