How severe is CVE-2023-35794?

CVE-2023-35794 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-35794 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35794?

CVE-2023-35794 affects Cassianetworks Access Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35794?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-35794 published?

CVE-2023-35794 was published on 2023-10-27 and last updated on 2026-06-17.

CVE-2023-35794

CVE-2023-35794 is a high-severity vulnerability in Cassianetworks Access Controller with a CVSS 3.x base score of 8.8. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cassianetworks Access Controller
Published: 2023-10-27
Last modified: 2026-06-17

Description

An issue was discovered in Cassia Access Controller 2.1.1.2303271039. The Web SSH terminal endpoint (spawned console) can be accessed without authentication. Specifically, there is no session cookie validation on the Access Controller; instead, there is only Basic Authentication to the SSH console.

Frequently asked questions

What is CVE-2023-35794?: An issue was discovered in Cassia Access Controller 2.1.1.2303271039. The Web SSH terminal endpoint (spawned console) can be accessed without authentication. Specifically, there is no session cookie validation on the Access Controller; instead, there is only Basic Authentication to the SSH console.
How severe is CVE-2023-35794?: CVE-2023-35794 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-35794 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35794?: CVE-2023-35794 affects Cassianetworks Access Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35794?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-35794 published?: CVE-2023-35794 was published on 2023-10-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cassianetworks:access_controller:2.1.1.2303271039:*:*:*:*:*:*:*

More vulnerabilities in Cassianetworks Access Controller

CVE-2023-35793 — High (CVSS 8.8): An issue was discovered in Cassia Access Controller 2.1.1.2303271039. Establishing a web SSH session to gateways is…
CVE-2021-22685 — Medium (CVSS 6.2): An attacker may be able to use minify route with a relative path to view any file on the Cassia Networks Access…
CVE-2023-31445 — Medium (CVSS 5.3): Cassia Access controller before 2.1.1.2203171453, was discovered to have a unprivileged -information disclosure…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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