CVE-2026-40949

Buffer overflow in Windows clients prior to 14.50

Published Apr 30, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
CPEs cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Weaknesses CWE-119
Type Values Removed Values Added
Weaknesses CWE-121
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Absolute
Absolute secure Access
Vendors & Products Absolute
Absolute secure Access
Type Values Removed Values Added
Weaknesses CWE-119
Type Values Removed Values Added
Description 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.
Title Buffer overflow in Windows clients prior to 14.50
References
Metrics cvssV4_0

{'score': 6.8, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Absolute
Published
Updated
May 1, 2026, 2:32 PM
Reserved
Apr 16, 2026, 12:19 AM
Status
Analyzed
Published
Apr 30, 2026, 9:16 PM
Modified
Oct 26, 2026, 9:10 PM