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Oracle E-Business Tax CVE-2026-70806

| EUVDEUVD-2026-61757 HIGH
Missing Authentication for Critical Function (CWE-306)
2026-08-18 secalert_us@oracle.com GHSA-g94q-9x7p-jr3r
7.1
CVSS 3.1 · Vendor: oracle
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Severity by source

Vendor (oracle) PRIMARY
7.1 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
vuln.today AI
7.1 HIGH

Local attack vector and low privileges align with required infrastructure logon; no confidentiality impact per vendor description; integrity and availability both high.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 19, 2026 - 02:06 vuln.today
CVE Published
Aug 18, 2026 - 21:17 nvd
HIGH 7.1

DescriptionCVE.org

Vulnerability in the Oracle E-Business Tax product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle E-Business Tax executes to compromise Oracle E-Business Tax. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle E-Business Tax accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle E-Business Tax. CVSS 3.1 Base Score 7.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).

AnalysisAI

Oracle E-Business Tax versions 12.2.3 through 12.2.15 allows a low-privileged local attacker to compromise data integrity and trigger a repeatable denial-of-service condition in the Internal Operations component. Successful exploitation enables unauthorized creation, deletion, or modification of critical tax data, and can cause the application to hang or crash completely, disrupting core business tax processing workflows. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated session with at least low-level privilege on the local operating system or application layer of the infrastructure host where Oracle E-Business Tax executes (CVSS PR:L, AV:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 7.1 with vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H reflects a locally-exploitable flaw requiring only low privileges and no user interaction, with high integrity and availability impact but no confidentiality exposure. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation The primary remediation is to apply the Oracle Critical Patch Update (CPU) for August 2026, available at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Immediately initiate an audit of all Oracle E-Business Tax installations to identify systems running versions 12.2.3 through 12.2.15 and assess their criticality. …

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CVE-2026-70806 vulnerability details – vuln.today

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