---
id: CVE-2026-55400
title: |-
  CVE-2026-55400 is an integer underflow in Secure Access servers prior to
   version 14.57
summary: |-
  CVE-2026-55400 is an integer underflow in Secure Access servers prior to
   version 14.57. Attackers with an authenticated session can send 
  specially crafted traffic to a server in a non-default configuration and
   cause a persistent denia…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-190
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-2026-55400'
references:
  - url: >-
      https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55400
    label: SecurityResponse@netmotionsoftware.com
tags:
  - nvd
epss: 0.0037
epssPercentile: 0.28115
ingestedAt: '2026-09-05T16:41:56.941Z'
---

## Overview

CVE-2026-55400 is an integer underflow in Secure Access servers prior to
 version 14.57. Attackers with an authenticated session can send 
specially crafted traffic to a server in a non-default configuration and
 cause a persistent denial of service.

## Affected

- `secure_access < 14.57`

## Remediation

Upgrade past the affected range:

- `secure_access 14.57`