Targets Oracle Siebel CRM Integration, a widely deployed enterprise CRM; allows remote takeover with scope change, risking business-critical systems and data.
CVE-2026-62590
Remote takeover of Oracle Siebel CRM Integration via HTTP by low-privileged attacker
Is CVE-2026-62590 being exploited?
Not confirmed. CVE-2026-62590 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.31% probability of exploitation in the next 30 days.
How severe is CVE-2026-62590?
CVE-2026-62590 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-62590?
Yes. A fix has been recorded for CVE-2026-62590. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-62590 affect?
CVE-2026-62590 affects Oracle Siebel CRM Integration (Open Integration) 25.12-26.6, Siebel CRM servers. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-62590?
Block/limit HTTP access, isolate affected instances, apply vendor patch when released, monitor logs and rotate credentials
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote compromise of Siebel CRM Integration allowing data exfiltration, integrity/availability loss and lateral movement to other products.
Immediate action required
- affected>= 25.12 and <= 26.6
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.