How severe is CVE-2026-40949?

CVE-2026-40949 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-40949 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40949?

CVE-2026-40949 affects Absolute Secure Access. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40949?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-40949 have an EU (EUVD) identifier?

Yes. CVE-2026-40949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26429.

When was CVE-2026-40949 published?

CVE-2026-40949 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-40949

CVE-2026-40949 is a medium-severity vulnerability in Absolute Secure Access with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v4: 6.8
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26429
Weakness: CWE-121
Affected product: Absolute Secure Access
Published: 2026-04-30
Last modified: 2026-06-17

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.

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.
How severe is CVE-2026-40949?: CVE-2026-40949 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-40949 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40949?: CVE-2026-40949 affects Absolute Secure Access. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40949?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40949 have an EU (EUVD) identifier?: Yes. CVE-2026-40949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26429.
When was CVE-2026-40949 published?: CVE-2026-40949 was published on 2026-04-30 and last updated on 2026-06-17.

References

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

Affected products (1)

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

More vulnerabilities in Absolute Secure Access

CVE-2026-33447 — Critical (CVSS 9.8): CVE-2026-33447 is a buffer overflow in a message parsing function of the Secure Access client prior to 14.50.…
CVE-2026-33446 — Critical (CVSS 9.8): CVE-2026-33446 is a buffer overflow in the authentication sub-system of the Secure Access client prior to 14.50.…
CVE-2025-49084 — Critical (CVSS 9.1): CVE-2025-49084 is a vulnerability in the management console of Absolute Secure Access prior to version 13.56. Attackers…
CVE-2026-33451 — High (CVSS 7.8): CVE-2026-33451 is an arbitrary read/write vulnerability in the Secure Access Windows client prior to 14.50. Attackers…
CVE-2026-33449 — High (CVSS 7.5): CVE-2026-33449 is a buffer overflow in a message handling function of the Secure Access client prior to 14.50.…
CVE-2026-0517 — High (CVSS 7.5): CVE-2026-0517 is a denial-of-service vulnerability in versions of Secure Access Server prior to 14.20. An attacker can…

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