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Vulnerability record · CVE-2026-91843 · published 16 September 2026

CVE-2026-91843: Stack-based buffer overflow vulnerability

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

9.8 CVSS 3.1 Critical EPSS 0.52% · top 58.2% CWE-121 · Stack-based buffer overflow Awaiting Analysis
9.8CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
18 Sep 2026Last modified by NVD

Description

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

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

References

LinkTags
https://support.checkpoint.com/results/sk/sk1000155

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Source: NIST National Vulnerability Database (record CVE-2026-91843), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.