CVE-2026-40949

MEDIUM

Published Apr 30, 2026 Modified May 5, 2026 CWE-121

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.

CVSS v3.1 Score

4.4

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0002

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
absolute	secure_access	< 14.50
microsoft	windows	All

References

Advisories & Patches

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2026-40949? +

CVE-2026-40949 has a CVSS v3.1 score of 4.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0002, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-40949? +

CVE-2026-40949 affects products from absolute, microsoft, specifically: secure_access, windows. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-40949? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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