CVE-2026-55400 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Absolute Security

Secure Access

unaffected

Version	Status	Constraints
`0`	affected	< 14.57

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55400

History

Thu, 13 Aug 2026 16:15:00 +0000

Type	Values Removed	Values Added
Description		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.
References		https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55400
Metrics		cvssV4_0 `{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Absolute

Published: 2026-08-13T16:05:10.423Z

Updated: 2026-08-13T16:05:10.423Z

Reserved: 2026-06-16T21:26:37.698Z

Link: CVE-2026-55400

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-13T16:18:07.720

Modified: 2026-08-13T16:18:07.720

Link: CVE-2026-55400

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

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