CVE-2026-70855: Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training)

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CRITICAL 9.3

CVE-2026-70855 is a critical-severity flaw (CVSS 9.3) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Self Service. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel Apps - Self Service, attack

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-08-18
Last modified	2026-10-22

Publisher (CNA): Oracle

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

Timeline

2026-08-18Published CVE record published
2026-10-22 17:09 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · retext · FIXED · 8.1.0-1.fc46 · FEDORA-2026-0602a84203 · source

sudo dnf upgrade --advisory=FEDORA-2026-0602a84203

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-2026-70855?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-70855 being exploited?

CVE-2026-70855 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-2026-70855 affect?

CVE-2026-70855 affects affected software. Severity is critical (CVSS 9.3). Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network

How urgent is CVE-2026-70855?

Priority 40/100. Critical severity

References

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