CVE-2016-3476: Unspecified vulnerability in the Oracle Knowledge component in Oracle Siebel CRM 8.5.x allows remote attackers

This month

MEDIUM 6.5REMOTEDOWNGRADE

CVE-2016-3476 is a medium-severity flaw (CVSS 6.5) affecting knowledge. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in the Oracle Knowledge component in Oracle Siebel CRM 8.5.x allows remote attackers to affect confidentiality and integrity via vectors related to Information Manager Console.

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Published	2016-07-21
Last modified	2026-06-17

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2016-07-21 10:12 UTCPublished CVE record published
2026-06-17 00:45 UTCUpdated Record last modified

oracle knowledge DOWNGRADE

Affected: 8.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.5

1. Check installed version

apt-cache policy knowledge || rpm -q knowledge || knowledge --version

2. No fixed release: DOWNGRADE to a release before 8.5 (Debian / Ubuntu)

apt-cache madison knowledge sudo apt install knowledge=<VERSION_BEFORE_8.5> sudo apt-mark hold knowledge

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list knowledge sudo dnf downgrade knowledge-<VERSION_BEFORE_8.5> sudo dnf versionlock add knowledge

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-2016-3476?

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

Is CVE-2016-3476 being exploited?

CVE-2016-3476 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-2016-3476 affect?

CVE-2016-3476 affects knowledge. Severity is medium (CVSS 6.5). Unspecified vulnerability in the Oracle Knowledge component in Oracle Siebel CRM 8.5.x allows remote attackers to affect confidentiality and integrity via vectors related to Information Manager Console.

How urgent is CVE-2016-3476?

Priority 48/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-2932 MEDIUM 5.9 UPGRADE Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: Information Manager Console)
CVE-2020-2931 CRITICAL 9.8 UPGRADE Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: Web Applications - InfoCenter)
CVE-2020-2795 MEDIUM 6.3 UPGRADE Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: Information Manager Console)
CVE-2020-2791 CRITICAL 9.8 UPGRADE Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: Information Manager Console)
CVE-2020-2553 MEDIUM 4.8 UPGRADE Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: Information Manager Console)

References

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