CVE record · CVE-2026-91843

Stack overflow in login process to the Security Management and Log Servers

CVSS 9.8 CriticalCriticalEPSS 0.0052 · 44th percentile

Critical, because:

CVSS score 9.8: 9.0 or more.

Published by the CVE Program (CNA: checkpoint) at 16 Sept 2026, 13:03 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
checkpoint	Quantum Security Management	affected R82.10 with Jumbo Hotfix Take 44 or below affected R82 with Jumbo Hotfix Take 126 or below affected R81.20 with Jumbo Hotfix Take 166 or below affected R81.10 (EOS) with Jumbo Hotfix Take 190 or below affected R81 (EOS) affected R80.40 (EOS) affected R80.30 (EOS) affected R80.20 (EOS) affected R80.10 (EOS) affected R80 (EOS)

Identifiers: CVE-2026-91843
CNA: checkpoint
Weakness (CWE): CWE-121
Tags: checkpoint Quantum Security Management
Memory corruption
Published: 16 Sept 2026
Updated: 17 Sept 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (checkpoint)

CISA KEV Not listed.
EPSS 0.0052, the 44th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

support.checkpoint.com/results/sk/sk1000155

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.