CVE-2026-21962
CriticalExploitedPublic exploitEasily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in.
Published Feb 9, 2026 · Updated Aug 25, 2026 · Also known as TR-26-0035
Key Facts
Patch immediately- CVE-2026-21962 is a critical-severity vulnerability (CVSS 10.0 v3.1) affecting HTTP Server (Oracle), HTTP Server Oracle Weblogic Server Proxy Plug-In (Oracle), Weblogic Server Proxy Plug-In (Oracle) and 1 more product.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 10, 2026. Public exploit code is available.
- EPSS estimates a 73% 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
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS (30-day exploit likelihood)
73%
Higher than 99.4% 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 HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in. While the vulnerability is in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data. Note: Affected version for Weblogic Server Proxy Plug-in for IIS is 12.2.1.4.0 only. CVSS 3.1 Base Score 10.0 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Aug 24, 2026 | Aug 27, 2026 | Not reported |
| Industry KEV feed | Feb 10, 2026 | Aug 27, 2026 | Not reported |
| CIRCL KEV | Aug 24, 2026 | Aug 27, 2026 | Not reported |
| ENISA EUVD | Aug 24, 2026 | n/a | Not reported |
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Affected Products
10 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| HTTP ServerOracle | 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 | n/a |
| HTTP Server Oracle Weblogic Server Proxy Plug-InOracle | 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 | n/a |
| Weblogic Server Proxy Plug-InOracle | 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 | n/a |
| Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in | >= 12.2.1.4.0 | n/a |
Timeline
Publicly disclosed
Feb 9, 2026
Added to Industry KEV feed
Feb 10, 2026
Added to CISA KEV
Aug 24, 2026
Added to CIRCL KEV
Aug 24, 2026
Added to ENISA EUVD
Aug 24, 2026
Last updated
Aug 25, 2026
Weakness Type
- CWE-284 Improper Access Control
References
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-21962
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-21969
- advisoryOracle Advisory
- advisoryUSOM advisory
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS).
Affected: HTTP Server (Oracle) versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0; HTTP Server Oracle Weblogic Server Proxy Plug-In (Oracle) versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0; Weblogic Server Proxy Plug-In (Oracle) versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, among others. 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 Feb 10, 2026.
Yes. It was added on Aug 24, 2026 with a federal remediation due date of Aug 27, 2026.
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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