CVE-2026-21962: Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability
Oracle · HTTP Server and Oracle Weblogic Server Proxy Plug-in
Listed by CISA as exploited in the wild since 24 Aug 2026. Below: exploitation status, EPSS and every published CVSS, each with its source, then affected versions and references.
Build snapshot collected · KEV catalog 2026.10.02 · EPSS of 2 Oct 2026 · not a live feed: collected once, at build time
Description
as written by CISA (KEV catalog)
Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in contain an improper access control vulnerability that can result in unauthorized creation, deletion or modification access to critical data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in accessible data.
Required action
CISA KEV
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 and versions
CVE record · oracle
Oracle Corporation · Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in
- affected: 12.2.1.4.0
- affected: 14.1.1.0.0
- affected: 14.1.2.0.0
Status words (affected, unaffected, unknown) and version bounds are copied from the record. An upper bound such as “before 7.1.0” usually marks the first fixed version; confirm in the vendor advisory before planning an upgrade.
References
CISA KEV notes and CVE record
- https://www.oracle.com/security-alerts/cpujan2026.html
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-21962
EPSS over the last 30 days
See also: all Oracle entries in KEV · the full KEV catalog
Related entries
Other Oracle entries in KEV
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- CVE-2025-61882Oracle E-Business Suite Unspecified Vulnerability
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Questions about CVE-2026-21962
Is CVE-2026-21962 being exploited?
Yes, according to CISA. CVE-2026-21962 was added to the Known Exploited Vulnerabilities catalog on 24 Aug 2026, which CISA does only with reliable evidence of exploitation in the wild. The catalog field for ransomware campaign use says "Unknown".
What is the deadline to remediate CVE-2026-21962?
CISA set 27 Aug 2026 as the due date for US Federal Civilian Executive Branch agencies. The date is binding only for those agencies; other organisations can read it as a measure of urgency.
What is the EPSS score of CVE-2026-21962?
70.9%, in the 99.4th percentile, in the FIRST EPSS model of 2 Oct 2026. It estimates the probability of exploitation activity in the following 30 days. For a CVE already in KEV the score is secondary: exploitation has been observed.
How severe is CVE-2026-21962?
oracle.com rates it 10.0 CRITICAL (CVSS 3.1). These are the published assessments as of 3 Oct 2026; this site does not rescore.
Which product does CVE-2026-21962 affect?
Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in, as named in the CISA catalog. The affected versions listed in the CVE record are on this page; the vendor advisory in the references is the authority on fixed versions.
Related sections
- WatchlistWhat attackers started using this month, most urgent first.
- Exploited catalogEvery flaw CISA lists as used in real attacks (KEV), searchable.
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