Widely-used Oracle core banking software; high impact data confidentiality and integrity; could disrupt financial operations.
CVE-2026-21973
Remote privilege escalation in Oracle FLEXCUBE Investor Servicing via HTTP
Is CVE-2026-21973 being exploited?
Not confirmed. CVE-2026-21973 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 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-21973?
CVE-2026-21973 is rated High with a CVSS score of 8.1. 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-2026-21973?
Yes. A fix has been recorded for CVE-2026-21973. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21973 affect?
CVE-2026-21973 affects Oracle FLEXCUBE Investor Servicing Security Management System, Versions 14.5.0.15.0, 14.7.0.8.0, 14.8.0.1.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-21973?
Patch ASAP to fixed release
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker with HTTP access and low privileges can read, modify, or delete data in FLEXCUBE Investor Servicing; may expose sensitive records.
Immediate action required
- affected14.5.0.15.0
- affected14.7.0.8.0
- affected14.8.0.1.0
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.