How severe is CVE-2026-40958?

CVE-2026-40958 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-40958 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40958?

CVE-2026-40958 affects Absolute Secure Access. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40958?

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

When was CVE-2026-40958 published?

CVE-2026-40958 was published on 2026-07-15 and last updated on 2026-07-16.

CVE-2026-40958

CVE-2026-40958 is a low-severity vulnerability in Absolute Secure Access with a CVSS 3.x base score of 3.7. 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-20.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v4: 2.3
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Absolute Secure Access
Published: 2026-07-15
Last modified: 2026-07-16

Description

CVE-2026-40958 is a input validation error in Secure Access clients prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS against their client.

Frequently asked questions

What is CVE-2026-40958?: CVE-2026-40958 is a input validation error in Secure Access clients prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS against their client.
How severe is CVE-2026-40958?: CVE-2026-40958 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-40958 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40958?: CVE-2026-40958 affects Absolute Secure Access. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40958?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-40958 published?: CVE-2026-40958 was published on 2026-07-15 and last updated on 2026-07-16.

References

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40958

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-2026-40952 — High (CVSS 7.8): CVE-2026-40952 is a privilege misconfiguration in the Secure Access installer for the Windows client and server prior…
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-2026-40957 — High (CVSS 7.5): o CVE-2026-40957 is a frameable content vulnerability in the Secure Access server login page prior to 14.55.…

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