TI-2021-01835 Aliases CVE-2021-2156 GHSA-vgmj-4mmf-79r6

Vulnerability in the Oracle Customers Online product of Oracle E-Business Suite…

LOW 39Published 2021-04-22 · Updated 2024-09-26

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Vulnerability in the Oracle Customers Online product of Oracle E-Business Suite (component: Customer Tab). Supported versions that are affected are 12.1.3 and 12.2.3-12.2.10. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Customers Online. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Customers Online accessible data as well as unauthorized access to critical data or complete access to all Oracle Customers Online accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01015 63rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Oracle	Customers Online	12.1.3; 12.2.3-12.2.10	—	No fix listed	CNA

Customers Online VendorOracle Affected 12.1.3; 12.2.3-12.2.10 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:customers_online::::::::	12.2.3 – 12.2.10	Vulnerable	Oracle
cpe:2.3:a:oracle:customers_online:12.1.3:::::::*	12.1.3	Vulnerable	Oracle

cpe:2.3:a:oracle:customers_online:*:*:*:*:*:*:*:* Versions 12.2.3 – 12.2.10 Vulnerable ·Oracle
cpe:2.3:a:oracle:customers_online:12.1.3:*:*:*:*:*:*:* Versions 12.1.3 Vulnerable ·Oracle

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-2156
2026-10-03 Alias added: GHSA-vgmj-4mmf-79r6

References

Patch 1

https://www.oracle.com/security-alerts/cpuapr2021.html

TI-2026-49442 Improper access control in Oracle Customers Online CVSS 3.1HIGH 8.8
TI-2026-43941 Improper access control in Oracle Customers Online CVSS 3.1HIGH 8.1
TI-2026-43664 Improper access control in Oracle Customers Online CVSS 3.1HIGH 8.1
TI-2026-43663 Improper access control in Oracle Customers Online CVSS 3.1HIGH 8.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences