CVE-2026-91843

critical

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

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

CVSS

9.8

9.8 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (cve@checkpoint.com)

Timeline (UTC)

Published: 2026-09-16 14:17

Modified: 2026-09-18 19:34

NVD status: Awaiting Analysis

Last synced 2 days ago

Verified against the source API 2026-10-27 06:54 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

No vendor advisory or patch reference tagged by NVD. Check the references below.

NVD CVE API 2.0 — fetched 2026-10-27 06:54 UTC · record ↗