Exploited CVEs / Oracle / CVE-2026-35273

CVE-2026-35273

Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted, and the vulnerability is known to be used in ransomware campaigns. Federal agencies were required to remediate by 2026-06-15 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Oracle Critical Patch Updates, linked below.

Risk summary

In the top 10 of the Senserva CVE Ranking (as of 2026-08-13)

CriticalCISA KEVRansomware

9.8

CVSS base

95%

EPSS exploit probability

Critical

Severity

2026-06-12

Added to KEV

2026-06-15 (past due)

CISA due date

Actively exploited Oracle PeopleSoft Enterprise PeopleTools vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2026-06-12.

Senserva AI read on CVE-2026-35273 CISA required action Official fix for CVE-2026-35273 Admin questions #4 hottest CVE right now

Senserva AI Opinion for CVE-2026-35273

This flaw lets an unauthenticated attacker fully take over PeopleSoft Enterprise PeopleTools because a critical function is missing authentication entirely, meaning no credentials or user interaction are required. Organizations running PeopleSoft for HR, payroll, or financials are exposed, and with a 94% EPSS score, confirmed exploitation in CISA KEV as of 2026-06-12, and documented ransomware use, this is being weaponized right now against internet-facing deployments.

Do this: Apply Oracle's patch for CVE-2026-35273 to all PeopleTools instances immediately and pull any internet-exposed PeopleSoft portals behind a VPN or firewall until patched.

AI-generated from public data, 2026-07-24. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2026-35273

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I run IT security. Facts for CVE-2026-35273, an actively exploited vulnerability (source: https://senserva.com/cve/CVE-2026-35273.html, data from CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2026-35273: Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability
- Affected: Oracle PeopleSoft Enterprise PeopleTools
- Severity: Critical, CVSS 9.8; EPSS 30-day exploitation probability 95%
- Added to CISA KEV: 2026-06-12; federal remediation due 2026-06-15
- Ransomware-linked: YES
- CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or dis...
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) The fastest safe path to remediation. 4) How to check whether my environment is exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Patch immediately

Exploited in the wild and used in ransomware campaigns.

The fix ships from the vendor: Oracle Critical Patch Updates.

Do this now: Move this ahead of everything else in the queue, then verify the fix actually landed on every exposed device.

Updated August 14, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Full tracking and change history for CVE-2026-35273

Published: 2026-06-12
Last revised: 2026-06-12
Changes tracked: 1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

Senserva Watchevery change we have recorded for this one

What changed, and when

Drawn by Senserva Vivid from the Senserva change record. Hover any point for its date and value.

2026-06-12 added to the CISA KEV catalog by CISA
2026-07-17 CVSS 0.0 to 9.8; EPSS first scored at 92.3%
2026-07-23 EPSS 92.3% to 94.0%
2026-07-24 EPSS 94.0% to 94.0%
2026-08-02 EPSS 94.0% to 95.5%

Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.

CISA required action

Federal (BOD 22-01) remediation due date: 2026-06-15 (past due).

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Official fix for CVE-2026-35273

The authoritative fix and affected-version list are published by the vendor. Find the PeopleSoft Enterprise PeopleTools advisory on Oracle Critical Patch Updates.

Oracle Critical Patch Updates CISA KEV entry

Common questions about CVE-2026-35273

Is CVE-2026-35273 actively exploited?

Yes. CVE-2026-35273 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2026-06-12, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 95%. CISA also reports it is known to be used in ransomware campaigns.

What is the CISA deadline and required action for CVE-2026-35273?

CISA set the federal (BOD 22-01) remediation due date at 2026-06-15, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

What fixes CVE-2026-35273?

The authoritative fix is in the vendor advisory: see Oracle Critical Patch Updates for the patched PeopleSoft Enterprise PeopleTools versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2026-35273?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2026-35273's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).

Scope and sources

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All Oracle exploited CVEs on one page: Oracle vulnerabilities actively exploited.
Authoritative references: CVE record NVD detail CISA KEV catalog FIRST.org EPSS

Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.