CVE-2026-40953 | BDVDB-2026-348591 Detail

Absolute SecuritySecure Access

Description#

CVE-2026-40953 is a heap overflow in the certificate parsing function of Secure Access clients prior to 14.55. Attackers with local access and administrator permissions can create a denial of service attack against the client over which they have control.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.

Weaknesses#

CWE-787 Out-of-bounds Write

References#

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40953

Exploit#

No public exploit known

History#

Version 12026-07-15Record published in the CVE List.
Version 22026-07-16Most recent update recorded in the CVE List.

Published

Published: 2026-07-15
Last modified: 2026-07-16

Vendor information

Vendor: Absolute Security
Product: Secure Access

All Absolute Security vulnerabilities

Score

6.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 0.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 14.55
Fixed
14.55

Scoring System

CVSS v4.0

6.7 Medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Attack Requirements	None
Privileges Required	High
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	High
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).