High severity · published Aug 18, 2026
CVE-2026-70688
Vulnerability in Oracle Essbase (component: Calculator)
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
Vulnerability in Oracle Essbase (component: Calculator). The supported version that is affected is 21.8.1.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in takeover of Oracle Essbase. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OE
Oracle Essbase · Oracle Corporation
21.8.1.0.0 · source: vendor
ES
Essbase · Oracle
21.8.1.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-70688
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-70688
Vendor Advisory
https://www.oracle.com/security-alerts/cspuaug2026.html
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