Oracle Mobile Field Service: Improper access control
Summary
Oracle Mobile Field Service, a module of Oracle E-Business Suite versions 12.2.3 to 12.2.15, contains an improper access control flaw (CWE-284). An attacker with network access over HTTPS and a valid low-privilege account can take over the product, with high impact on confidentiality, integrity and availability. The CVSS 3.1 base score is 8.8, and NVD analysis was still pending at the time of the record.
Affected
- Oracle Mobile Field Service, a module of Oracle E-Business Suite, supported versions 12.2.3 to 12.2.15
- Vendor data for the affected range is taken from the CVE record and third-party sources; confirm against Oracle
Fixed in
Unknown. The fix is included in the Oracle Critical Patch Update of October 2026; the patch number for 12.2 was not confirmed in the sources reviewed.
Workaround
Unknown. No vendor workaround found. Possible interim measures (not vendor guidance):
- Restrict HTTPS access to Mobile Field Service endpoints to known networks or VPN
- Review accounts that hold low-privilege logons
Exploitation
- No confirmed exploitation found
- Not listed in the CISA KEV catalog as of 21 October 2026, per one third-party source
- No public proof of concept found
- EPSS score 0.00433 (low)
Our recommendation
- Check whether Mobile Field Service is reachable from the internet; if so, treat as high priority
- Apply the October 2026 Oracle Critical Patch Update for E-Business Suite 12.2, including the Database and Fusion Middleware prerequisites; confirm the patch in the advisory and MOS KA923
- Until patched, restrict HTTPS access to known networks or VPN and review low-privilege accounts
- Patch the whole product, as other flaws are fixed in the same release
- Monitor logs for unusual logons to field-service accounts
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update Advisory - October 2026 www.oracle.com
- CVE record mirror (Vulners) vulners.com
- Strix CVE details www.strix.ai
- Oracle EBS October 2026 update notes blogs.oracle.com
- Oracle security update overview (Cybersecurity News) cybersecuritynews.com
- Oracle October 2026 CPU overview (Brandefense) brandefense.io
- Oracle October 2026 CPU overview (Waratek) waratek.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 15:23.
Original description (NVD)
Vulnerability in the Oracle Mobile Field Service 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 network access via HTTPS to compromise Oracle Mobile Field Service. Successful attacks of this vulnerability can result in takeover of Oracle Mobile Field Service. 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).
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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