CVE-2026-40949

CVE-2026-40949 is a buffer overflow vulnerability in the Secure Access Windows client prior to 14.50. Attackers with local control of the Windows client can use it to trigger a denial of service.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40949	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

05 May 2026, 02:32

Type	Values Removed	Values Added
References	~~() https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40949 -~~	() https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40949 - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.4
CPE		cpe:2.3:a:absolute:secure_access:::::::: cpe:2.3:o:microsoft:windows:-:::::::*
First Time		Microsoft Absolute secure Access Absolute Microsoft windows

01 May 2026, 15:16

Type	Values Removed	Values Added
CWE		CWE-121

30 Apr 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-30 21:16

Updated : 2026-05-05 02:32

NVD link : CVE-2026-40949

Mitre link : CVE-2026-40949

CVE.ORG link : CVE-2026-40949

JSON object : View

Products Affected

absolute

secure_access

microsoft

windows

CWE

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2026-40949", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 0.8}], "cvssMetricV40": [{"type": "Secondary", "source": "SecurityResponse@netmotionsoftware.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.8, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-04-30T21:16:32.883", "references": [{"url": "https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40949", "tags": ["Vendor Advisory"], "source": "SecurityResponse@netmotionsoftware.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "CVE-2026-40949 is a buffer overflow vulnerability in the Secure Access \nWindows client prior to 14.50. Attackers with local control of the \nWindows client can use it to trigger a denial of service."}], "lastModified": "2026-05-05T02:32:29.440", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FBD1BC48-5034-499F-8C00-89FCD8EA2FC6", "versionEndExcluding": "14.50"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "SecurityResponse@netmotionsoftware.com"}