CVE-2026-48131 | BDVDB-2026-335136 Detail

checkpointQuantum Security Gateway

Description#

The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality).

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-122 Heap-based Buffer Overflow

References#

https://support.checkpoint.com/results/sk/sk184981

Exploit#

No public exploit known

History#

Version 12026-05-26Record published in the CVE List.

Published

Published: 2026-05-26
Last modified: 2026-05-26

Vendor information

Vendor: checkpoint
Product: Quantum Security Gateway

All checkpoint vulnerabilities

Score

8.1 High

EPSS

2.6%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 85.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
R82.10 with Jumbo Hotfix Take 6 or below
Fixed
Not stated
Vulnerable
R82 with Jumbo Hotfix Take 91 or below
Fixed
Not stated
Vulnerable
R81.20 with Jumbo Hotfix Take 127 or below
Fixed
Not stated
Vulnerable
All releases from R81.10 and below
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.1 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).