Absolute Security Secure Access up to 14.54 Traffic Parsing Function integer underflow

Summaryinfo

A vulnerability was found in Absolute Security Secure Access up to 14.54. It has been classified as problematic. Affected by this issue is some unknown functionality of the component Traffic Parsing Function. The manipulation leads to integer underflow. This vulnerability is documented as CVE-2026-40954. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Absolute Security Secure Access up to 14.54 and classified as problematic. This issue affects an unknown code block of the component Traffic Parsing Function. The manipulation with an unknown input leads to a integer underflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

CVE-2026-40954 is an integer underflow vulnerability in the traffic parsing function of Secure Access clients prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS against their client

It is possible to read the advisory at absolute.com. The identification of this vulnerability is CVE-2026-40954 since 04/16/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 14.55 eliminates this vulnerability.

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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

CPE 2.3info

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CPE 2.2info

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