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CVE-2026-83339: Vulnerability in the Oracle WebCenter Enterprise Capture product of Oracle Fusion Middleware (component: Clien

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2026-83339 is a critical-severity flaw (CVSS 9.8) affecting webcenter enterprise capture. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle WebCenter Enterprise Capture product of Oracle Fusion Middleware (component: Client Bundle). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Enterprise Capture. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Enterprise Capture. CVSS 3.1

Why this priority

  • Critical severity
  • Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.5% (top 57%)
CISA exploited listNo
WeaknessCWE-287, CWE-306
Published2026-09-15
Last modified2026-09-21
Publisher (CNA): Oracle · Vendor: oracle

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Last updated 2026-09-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

oracle webcenter enterprise capture DOWNGRADE
Affected: 12.2.1.4.0 · 14.1.2.0.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 12.2.1.4.0
1. Check installed version
apt-cache policy webcenter-enterprise-capture || rpm -q webcenter-enterprise-capture || webcenter-enterprise-capture --version
2. No fixed release: DOWNGRADE to a release before 12.2.1.4.0 (Debian / Ubuntu)
apt-cache madison webcenter-enterprise-capture sudo apt install webcenter-enterprise-capture=<VERSION_BEFORE_12.2.1.4.0> sudo apt-mark hold webcenter-enterprise-capture
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list webcenter-enterprise-capture sudo dnf downgrade webcenter-enterprise-capture-<VERSION_BEFORE_12.2.1.4.0> sudo dnf versionlock add webcenter-enterprise-capture
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-83339?

webcenter enterprise capture: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-83339 being exploited?

CVE-2026-83339 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-83339 affect?

CVE-2026-83339 affects webcenter enterprise capture. Severity is critical (CVSS 9.8). Vulnerability in the Oracle WebCenter Enterprise Capture product of Oracle Fusion Middleware (component: Client Bundle). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthent

How urgent is CVE-2026-83339?

Priority 50/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

References

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