9.8

CVE-2026-91843: checkpoint quantum_security_management Stack-based Buffer Overflow

CVSS: 9.8v3.1CriticalAwaiting analysis
Published 16-09-2026Last modified 17-09-2026
Open JSON

Vulnerability summary

CVE-2026-91843 is a critical (CVSS 9.8) Stack-based Buffer Overflow vulnerability in checkpoint quantum_security_management. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 42.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-09-2026
    PublishedVulnerability first disclosed.
  2. 17-09-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

+0.02 pp

From 0.50% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Checkpoint1 product
  • quantum_security_managementR82.10 with Jumbo Hotfix Take 44 or below | R82 with Jumbo Hotfix Take 126 or below | R81.20 with Jumbo Hotfix Take 166 or below | R81.10 (EOS) with Jumbo Hotfix Take 190 or below | R81 (EOS) | R80.40 (EOS) | R80.30 (EOS) | R80.20 (EOS) | R80.10 (EOS) | R80 (EOS)

1 vendor · 1 product

References

1 links