CVE-2026-40956 - Vulnerability Details - OpenCVE

CVE-2026-40956 is a memory disclosure vulnerability in Secure Access client versions prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can cause a small amount of random memory to leak.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

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.

The EPSS score is 0.00171.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

References

Link	Providers
https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40956

History

Thu, 16 Jul 2026 14:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-200
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 15 Jul 2026 20:15:00 +0000

Type	Values Removed	Values Added
Description		CVE-2026-40956 is a memory disclosure vulnerability in Secure Access client versions prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can cause a small amount of random memory to leak.
Title		Memory disclosure in Secure Access Clients
References		https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40956
Metrics		cvssV4_0 `{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: Absolute

Published: 2026-07-15T19:55:05.678Z

Updated: 2026-07-16T13:12:35.493Z

Reserved: 2026-04-16T00:19:03.574Z

Link: CVE-2026-40956

Vulnrichment

Updated: 2026-07-16T13:12:31.765Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40956", "assignerOrgId": "b6533044-ea05-4482-8458-7bddeca0d079", "state": "PUBLISHED", "assignerShortName": "Absolute", "dateReserved": "2026-04-16T00:19:03.574Z", "datePublished": "2026-07-15T19:55:05.678Z", "dateUpdated": "2026-07-16T13:12:35.493Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b6533044-ea05-4482-8458-7bddeca0d079", "shortName": "Absolute", "dateUpdated": "2026-07-15T19:55:05.678Z"}, "title": "Memory disclosure in Secure Access Clients", "affected": [{"vendor": "Absolute Security", "product": "Secure Access", "versions": [{"status": "affected", "version": "0", "lessThan": "14.55", "versionType": "Client"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "CVE-2026-40956\nis a memory disclosure vulnerability in Secure Access client versions prior to 14.55.\nAttackers with intimate knowledge of and total control over the tunnel protocol\ncan cause a small amount of random memory to leak.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<span>CVE-2026-40956\nis a memory disclosure vulnerability in Secure Access client versions prior to 14.55.\nAttackers with intimate knowledge of and total control over the tunnel protocol\ncan cause a small amount of random memory to leak.</span>"}]}], "references": [{"url": "https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40956"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "LOW", "baseScore": 2.1, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-200", "lang": "en", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-16T13:12:21.752569Z", "id": "CVE-2026-40956", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-16T13:12:35.493Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-40956", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-16T13:12:21.752569Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-16T13:12:31.765Z"}}], "cna": {"title": "Memory disclosure in Secure Access Clients", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "ACTIVE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Absolute Security", "product": "Secure Access", "versions": [{"status": "affected", "version": "0", "lessThan": "14.55", "versionType": "Client"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40956"}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "descriptions": [{"lang": "en", "value": "CVE-2026-40956\nis a memory disclosure vulnerability in Secure Access client versions prior to 14.55.\nAttackers with intimate knowledge of and total control over the tunnel protocol\ncan cause a small amount of random memory to leak.", "supportingMedia": [{"type": "text/html", "value": "<span>CVE-2026-40956\nis a memory disclosure vulnerability in Secure Access client versions prior to 14.55.\nAttackers with intimate knowledge of and total control over the tunnel protocol\ncan cause a small amount of random memory to leak.</span>", "base64": false}]}], "providerMetadata": {"orgId": "b6533044-ea05-4482-8458-7bddeca0d079", "shortName": "Absolute", "dateUpdated": "2026-07-15T19:55:05.678Z"}}}, "cveMetadata": {"cveId": "CVE-2026-40956", "state": "PUBLISHED", "dateUpdated": "2026-07-16T13:12:35.493Z", "dateReserved": "2026-04-16T00:19:03.574Z", "assignerOrgId": "b6533044-ea05-4482-8458-7bddeca0d079", "datePublished": "2026-07-15T19:55:05.678Z", "assignerShortName": "Absolute"}, "dataVersion": "5.2"}