CVE-2026-70688Network attack vector

Low-privilege remote service takeover

Published Aug 18, 2026 · Updated Aug 25, 2026

Oracle Essbase 21.8.1.0.0 Calculator vulnerability allows remote authenticated users to take over the service through HTTP. Oracle identifies the Calculator as the affected component but does not disclose the flawed operation or how HTTP input reaches it. Any low-privileged Essbase account with network access can exploit the flaw without user interaction, compromising service data, integrity, and availability.

CVSS severity8.8
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Oracle Essbase 21.8.1.0.0 Calculator vulnerability allows remote authenticated users to take over the service through HTTP. Oracle identifies the Calculator as the affected component but does not disclose the flawed operation or how HTTP input reaches it. Any low-privileged Essbase account with network access can exploit the flaw without user interaction, compromising service data, integrity, and availability.

The record

CVE
CVE-2026-70688
Published
Aug 18, 2026
Updated
Aug 25, 2026
Vendor
Oracle
Product
Oracle Essbase
Classifications
T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=21.8.1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle · Oracle Essbaseversion=21.8.1.0.0

Published CVSS scores

8.8OracleCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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