Absolute Security Secure Access up to 14.56 integer underflow

Summaryinfo

A vulnerability marked as critical has been reported in Absolute Security Secure Access up to 14.56. The affected element is an unknown function. This manipulation causes integer underflow. The identification of this vulnerability is CVE-2026-55400. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Absolute Security Secure Access up to 14.56 and classified as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect availability. The summary by CVE is:

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.

It is possible to read the advisory at absolute.com. This vulnerability is known as CVE-2026-55400 since 06/16/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 14.57 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2830). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Absolute Secure Access

Productinfo

Vendor

• Absolute Security

Name

• Secure Access

Version

• 14.0
• 14.1
• 14.2
• 14.3
• 14.4
• 14.5
• 14.6
• 14.7
• 14.8
• 14.9
• 14.10
• 14.11
• 14.12
• 14.13
• 14.14
• 14.15
• 14.16
• 14.17
• 14.18
• 14.19
• 14.20
• 14.21
• 14.22
• 14.23
• 14.24
• 14.25
• 14.26
• 14.27
• 14.28
• 14.29
• 14.30
• 14.31
• 14.32
• 14.33
• 14.34
• 14.35
• 14.36
• 14.37
• 14.38
• 14.39
• 14.40
• 14.41
• 14.42
• 14.43
• 14.44
• 14.45
• 14.46
• 14.47
• 14.48
• 14.49
• 14.50
• 14.51
• 14.52
• 14.53
• 14.54
• 14.55
• 14.56

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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