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CVE-2026-40953

Heap overflow in Secure Access clients

MEDIUM
4.4
CVSS Score
Published: July 15, 2026 at 07:40 PM UTC
Updated: October 24, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsSecure AccessSecure Access

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Secure Access· Absolute
95%
v < 14.55
Affected range stops below 14.55, so it looks safe — our inference, not a vendor statement
Secure Access· Absolute Security
90%
0 ≤ v < 14.55
Affected range stops below 14.55, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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