CVE-2026-55402: N/A Secure Access servers vulnerability

Q: What is the severity of CVE-2026-55402?

CVE-2026-55402 has a risk rating of 33, indicating a high severity level.

Q: How do I fix CVE-2026-55402?

To remediate CVE-2026-55402, upgrade to Secure Access servers version 14.57 or later.

Q: What type of vulnerability is CVE-2026-55402?

CVE-2026-55402 is classified as an out of bounds read vulnerability.

Q: Who is affected by CVE-2026-55402?

All users of Secure Access servers prior to version 14.57 are affected by CVE-2026-55402.

Q: What could an attacker achieve by exploiting CVE-2026-55402?

An attacker could cause a persistent denial of service by exploiting CVE-2026-55402.

Published Aug 13, 2026

Updated

CVE-2026-55402 is an out of bounds read vulnerability in Secure Access servers prior to version 14.57. Attackers with an ‘in the middle’ position can send specially crafted data to a server causing a persistent denial of service.

Affected Software

1 affected component

N/A Secure Access servers<14.57

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Secure Access to a version that resolves this vulnerability.
Fixed in 14.57

Event History

Aug 13, 2026

CVE Published

via MITRE·04:16 PM

Data Sourced

via MITRE·04:16 PM

Description

Frequently Asked Questions

What is the severity of CVE-2026-55402?

CVE-2026-55402 has a risk rating of 33, indicating a high severity level.

How do I fix CVE-2026-55402?

To remediate CVE-2026-55402, upgrade to Secure Access servers version 14.57 or later.

What type of vulnerability is CVE-2026-55402?

CVE-2026-55402 is classified as an out of bounds read vulnerability.

Who is affected by CVE-2026-55402?

All users of Secure Access servers prior to version 14.57 are affected by CVE-2026-55402.

What could an attacker achieve by exploiting CVE-2026-55402?