CVE-2026-91843

A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.

CVSS v3.1

9.8 CRITICAL

EPSS

0.50%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

ScopeUNCHANGED

ConfidentialityHIGH

IntegrityHIGH

AvailabilityHIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Connections

5 relationships

Timeline

disclosure → media coverage

Sep 16, 2026

Disclosure — published as a CVE record.

Sep 17, 2026

thehackernews.com reports: Critical Check Point Management Flaw Lets Unauthenticated Attackers Run Code as Root

Sep 18, 2026

securityweek.com reports: Check Point, Kaspersky, Tanium Patch Product Vulnerabilities

Sep 18, 2026

bleepingcomputer.com reports: New Check Point flaw lets hackers execute code with root privileges

Public PoC (1)

Unverified third-party code — review before executing.