How severe is CVE-2017-10366?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2017-10366 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Oracle Peoplesoft Enterprise Peopletools

CVE-2017-10366

Vulnerability in the PeopleSoft Enterprise PT PeopleTools component of Oracle PeopleSoft Products (subcomponent: Performance Monitor). Supported versions that are affected are 8.54, 8.55 and 8.56. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PT PeopleTools. Successful attacks of this vulnerability can result in takeover of PeopleSoft Enterprise PT PeopleTools. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Published 2017-10-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.435 (98.7th percentile), scored 2026-10-18.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.435 · newest: 0.435 · change: 0.000

Affected products

Oracle Peoplesoft Enterprise Peopletools — versions 8.54, 8.55, 8.56
Oracle Corporation Peoplesoft Enterprise Pt Peopletools — versions 8.56, 8.54, 8.55

Public proof-of-concept exploits

References

www.securitytracker.com/id/1039598 (VDB Entry, Third Party Advisory, vdb-entry)
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html (Patch, Vendor Advisory)
www.exploit-db.com/exploits/43594/ (exploit)
www.securityfocus.com/bid/101455 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-10366?: CVE-2017-10366 is a critical-severity vulnerability in Oracle Peoplesoft Enterprise Peopletools. CVSS score: 9.8/10. Published 2017-10-19.
How severe is CVE-2017-10366?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-10366 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.