CVE-2026-62591: Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration)

Routine

HIGH 8.1UPGRADE

CVE-2026-62591 is a high-severity flaw (CVSS 8.1) affecting siebel crm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized creati

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-08-18
Last modified	2026-10-22

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-10-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-18Published CVE record published
2026-10-22 20:09 UTCUpdated Record last modified

oracle siebel crm UPGRADE

Affected: >= 25.12 and <= 26.6

Fixed in: newer than 26.6

Safe to downgrade to: a release before 25.12

1. Check installed version

apt-cache policy siebel-crm || rpm -q siebel-crm || siebel-crm --version

2. UPGRADE to newer than 26.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade siebel-crm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade siebel-crm

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 25.12 (Debian / Ubuntu)

apt-cache madison siebel-crm sudo apt install siebel-crm=<VERSION_BEFORE_25.12> sudo apt-mark hold siebel-crm

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list siebel-crm sudo dnf downgrade siebel-crm-<VERSION_BEFORE_25.12> sudo dnf versionlock add siebel-crm

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.

Exact fixes by distribution

Fedora 46 · wasmedge · FIXED · 0.18.1-1.fc46 · FEDORA-2026-4c27216e39 · source

sudo dnf upgrade --advisory=FEDORA-2026-4c27216e39

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-2026-62591?

siebel crm: upgrade to newer than 26.6. Exact commands for each OS are on this page.

Is CVE-2026-62591 being exploited?

CVE-2026-62591 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-2026-62591 affect?

CVE-2026-62591 affects siebel crm. Severity is high (CVSS 8.1). Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network acce

How urgent is CVE-2026-62591?

Priority 36/100. High severity

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References

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