---
id: CVE-2026-55401
title: |-
  CVE-2026-55401 is a null dereference vulnerability on the load-balancing
   sub-system of Secure Access servers prior to 14.57
summary: |-
  CVE-2026-55401 is a null dereference vulnerability on the load-balancing
   sub-system of Secure Access servers prior to 14.57. Attackers can send 
  an unauthenticated packet to a Secure Access server with load balancing 
  enabled, which res…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-476
vendor: absolute
product: secure_access
affected:
  - secure_access < 14.57
patched:
  - secure_access 14.57
published: '2026-08-13'
updated: '2026-09-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55401'
references:
  - url: >-
      https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55401
    label: SecurityResponse@netmotionsoftware.com
tags:
  - nvd
epss: 0.00293
epssPercentile: 0.22133
ingestedAt: '2026-09-05T17:42:35.568Z'
---

## Overview

CVE-2026-55401 is a null dereference vulnerability on the load-balancing
 sub-system of Secure Access servers prior to 14.57. Attackers can send 
an unauthenticated packet to a Secure Access server with load balancing 
enabled, which results in the internal load balancer crashing. After a 
successful attack, the Secure Access server is still able to accept 
connections and is still able to issue a failover to connected clients. ‍ https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

## Affected

- `secure_access < 14.57`

## Remediation

Upgrade past the affected range:

- `secure_access 14.57`