CVE-2026-40949 PUBLISHED

Buffer overflow in Windows clients prior to 14.50

Assigner: Absolute
Reserved: 16.04.2026 Published: 30.04.2026 Updated: 30.04.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 6.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	Absolute Software
Product	Secure Access
Versions	Default: unaffected affected from 0 to 14.50 (excl.)

References

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