How severe is CVE-2026-35273?

CVE-2026-35273 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which products are affected by CVE-2026-35273?

Affected package information for CVE-2026-35273 is not yet fully mapped. Check the official advisory links for details.

How do I patch CVE-2026-35273?

No patch has shipped for CVE-2026-35273 yet — track the oracle peoplesoft enterprise peopletools advisory for a fixed release and apply the workarounds below in the meantime.

How do I detect CVE-2026-35273 across my infrastructure?

Inventory every oracle peoplesoft enterprise peopletools deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

How do I mitigate CVE-2026-35273 if there is no patch (or I can't update yet)?

Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

How does O3 Security protect against CVE-2026-35273?

O3 detects and blocks CVE-2026-35273 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Is CVE-2026-35273 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2026-35273, including . All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

Is CVE-2026-35273 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2026-35273 (Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-06-12. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-06-15. The required action was: 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. This CVE has been used in known ransomware campaigns. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2026-35273?

CVE-2026-35273 is classified as Missing Authentication (CWE-306). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2026-35273?

CVE-2026-35273 affects oracle peoplesoft enterprise peopletools (2 versions, e.g. 8.61, 8.62). Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2026-35273?

A Nuclei detection template exists for CVE-2026-35273, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2026-35273 published, and has it been updated?

CVE-2026-35273 was published on June 11, 2026 and was last updated on July 23, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2026-06-12 — agencies required to remediate by 2026-06-15 · Ransomware

CVE-2026-35273

CRITICAL

CVE-2026-35273 is a critical-severity (CVSS 9.8) Missing Authentication vulnerability in oracle peoplesoft enterprise peopletools. It is in CISA's Known Exploited Vulnerabilities catalog (added 2026-06-12) and has been used in ransomware campaigns — treat it as actively exploited and patch now. O3 Security detects and blocks CVE-2026-35273 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Management). Supported versions that are affected are 8.61 and 8.62.…

Published

Jun 11, 2026

Updated

Jul 23, 2026

Affected

0 pkgs

Patched

None yet

Exploits

1 known

Description

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Management). Supported versions that are affected are 8.61 and 8.62. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in takeover of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Affected Products

1 product · 2 configurations

Application

peoplesoft enterprise peopletoolsoracle

2 versions

8.618.62

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

HORKimhab/CVE-2026-35273

CVE-2026-35273

⭐ 4🍴 0Jun 2026

Detection & mitigation playbook

Vendor / appliance

Detect
Inventory every oracle peoplesoft enterprise peopletools deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Remediation status
No patch has shipped for CVE-2026-35273 yet — track the oracle peoplesoft enterprise peopletools advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2026-35273 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2026-35273. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

O3 Security · Runtime Protection

Is CVE-2026-35273 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2026-35273 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.

Protect my workloads How runtime protection works

CVE-2026-35273

Description

Affected Products

Detection & mitigation playbook

Detect

Remediation status

Mitigate without a patch

How O3 protects you

Frequently Asked Questions

Is CVE-2026-35273 being exploited in your environment?